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bash git clone https://github.com/your_username/status-checker.git cd status-checker
bash pip install -r requirements.txt
FreshRSS python status_checker.py [-h] [-d DOMAIN] [-l LIST] [-o OUTPUT] [-v] [-update]
-d, --domain: Single domain/URL to check.-l, --list: File containing a list of domains/URLs to check.-o, --output: File to save the output.-v, --version: Display version information.-update: Update the tool.Example:
python status_checker.py -l urls.txt -o results.txt
This project is licensed under the MIT License - see the LICENSE file for details.
Cross-language email validation. Backed by a database of over 55 000 throwable email domains.
FILTER_VALIDATE_EMAIL for PHP)This will be very helpful when you have to contact your users and you want to avoid errors causing lack of communication or want to block "spamboxes".
Need to provide Webhooks inside your SaaS?
Need to embed a charts into an email?
It's over with Image-Charts, no more server-side rendering pain, 1 url = 1 chart.
https://image-charts.com/chart?
cht=lc // chart type
&chd=s:cEAELFJHHHKUju9uuXUc // chart data
&chxt=x,y // axis
&chxl=0:|0|1|2|3|4|5| // axis labels
&chs=873x200 // size
Mailchecker public API has been normalized, here are the changes:
MailChecker(email) -> MailChecker.isValid(email)
MailChecker($email) -> MailChecker::isValid($email)
import MailChecker
m = MailChecker.MailChecker()
if not m.is_valid('bla@example.com'):
# ...became:
import MailChecker
if not MailChecker.is_valid('bla@example.com'):
# ...MailChecker currently supports:
var MailChecker = require('mailchecker');
if(!MailChecker.isValid('myemail@yopmail.com')){
console.error('O RLY !');
process.exit(1);
}
if(!MailChecker.isValid('myemail.com')){
console.error('O RLY !');
process.exit(1);
}<script type="text/javascript" src="MailChecker/platform/javascript/MailChecker.js"></script>
<script type="text/javascript">
if(!MailChecker.isValid('myemail@yopmail.com')){
console.error('O RLY !');
}
if(!MailChecker.isValid('myemail.com')){
console.error('O RLY !');
}
</script>include __DIR__."/MailChecker/platform/php/MailChecker.php";
if(!MailChecker::isValid('myemail@yopmail.com')){
die('O RLY !');
}
if(!MailChecker::isValid('myemail.com')){
die('O RLY !');
}pip install mailchecker
# no package yet; just drop in MailChecker.py where you want to use it.
from MailChecker import MailChecker
if not MailChecker.is_valid('bla@example.com'):
print "O RLY !"Django validator: https://github.com/jonashaag/django-indisposable
require 'mail_checker'
unless MailChecker.valid?('myemail@yopmail.com')
fail('O RLY!')
end extern crate mailchecker;
assert_eq!(true, mailchecker::is_valid("plop@plop.com"));
assert_eq!(false, mailchecker::is_valid("\nok@gmail.com\n"));
assert_eq!(false, mailchecker::is_valid("ok@guerrillamailblock.com"));Code.require_file("mail_checker.ex", "mailchecker/platform/elixir/")
unless MailChecker.valid?("myemail@yopmail.com") do
raise "O RLY !"
end
unless MailChecker.valid?("myemail.com") do
raise "O RLY !"
end; no package yet; just drop in mailchecker.clj where you want to use it.
(load-file "platform/clojure/mailchecker.clj")
(if (not (mailchecker/valid? "myemail@yopmail.com"))
(throw (Throwable. "O RLY!")))
(if (not (mailchecker/valid? "myemail.com"))
(throw (Throwable. "O RLY!")))package main
import (
"log"
"github.com/FGRibreau/mailchecker/platform/go"
)
if !mail_checker.IsValid('myemail@yopmail.com') {
log.Fatal('O RLY !');
}
if !mail_checker.IsValid('myemail.com') {
log.Fatal("O RLY !")
}Go
go get https://github.com/FGRibreau/mailcheckerNodeJS/JavaScript
npm install mailcheckerRuby
gem install ruby-mailcheckerPHP
composer require fgribreau/mailcheckerWe accept pull-requests for other package manager.
$('td', 'table:last').map(function(){
return this.innerText;
}).toArray(); Array.prototype.slice.call(document.querySelectorAll('.entry > ul > li a')).map(function(el){return el.innerText});... please add your own dataset to list.txt.
Just run (requires NodeJS):
npm run build
Development environment requires docker.
# install and setup every language dependencies in parallel through docker
npm install
# run every language setup in parallel through docker
npm run setup
# run every language tests in parallel through docker
npm testThese amazing people are maintaining this project:
These amazing people have contributed code to this project:
Discover how you can contribute by heading on over to the CONTRIBUTING.md file.
BugChecker is a SoftICE-like kernel and user debugger for Windows 11 (and Windows XP as well: it supports Windows versions from XP to 11, both x86 and x64). BugChecker doesn't require a second machine to be connected to the system being debugged, like in the case of WinDbg and KD. This version of BugChecker (unlike the original version developed 20 years ago) leverages the internal and undocumented KD API in NTOSKRNL. KD API allows WinDbg/KD to do calls like read/write virtual memory, read/write registers, place a breakpoint at an address etc.
By contrast, the original BugChecker, like SoftICE as well, used to "take over" the system, by hooking several kernel APIs (both exported and private), taking control of the APIC, sending IPIs etc. This approach increases complexity exponentially (and lowers system stability), since the implementation must be compatible with all the supported versions and sub-version of Windows (at the function signature level) as well as all the possible supported hardware configurations. Moreover, 20 years later, PatchGuard makes this solution impossible.
By contrast, this version of BugChecker, by intercepting calls to KdSendPacket and KdReceivePacket in the kernel, presents itself to the machine being debugged as a second system running an external kernel debugger, but, in reality, everything happens on the same machine. Typically this is achieved by replacing KDCOM.DLL (which is the module that implements serial cable communication for the KD API in Windows) and by starting the system in kernel debugging mode. This approach (inspired by VirtualKD) lowers complexity and increases stability and compatibility (and portability, for example, to ARM - and modularity, since the lower level debugger capabilities are implemented behind KdXxxPacket and could be replaced with a custom implementation). Moreover, the presence of a kernel debugger at boot time (although "fake") makes Windows disable PatchGuard.
At the moment, BugChecker requires a PS/2 keyboard for input and a linear framebuffer to write its output.
Demonstration of BugChecker on Windows 11 22H2, inside VirtualBox 7.0.4. A JavaScript breakpoint condition is written that changes the flow of execution in an user mode thread.
BugChecker running in a very constrained environment: a Raspberry Pi 4 (4GB RAM), via QEMU on Windows XP (512MB RAM). A breakpoint is used to log all the SYSENTER calls from user mode to the kernel. The service index is stored in a JavaScript array.
Running BugChecker directly on bare metal, on an HP Pavilion Dv2000, which is an old PC with a PS/2 keyboard. The OS is Windows 7 Home 32bit.
Make sure that Secure Boot is disabled when installing and using BugChecker. Typically you can re-enable it later. If you are using VMware or VirtualBox, Secure Boot can be disabled in the virtual machine settings.
Consider also enabling legacy boot menu, if using Windows 8, 10 or 11, by using the command: bcdedit /set "{current}" bootmenupolicy legacy. It allows a smoother experience during boot, by allowing to select the BugChecker boot option and then to disable Driver Signature Enforcement at the same time.
The first step is to start Symbol Loader:
If necessary, disable the display drivers, by clicking on the "Disable Display Drvs" button. The same thing can be accomplished in Windows Device Manager. After the display drivers have been disabled, they remain disabled even after a system reboot. They can be re-enabled at any time later when not using BugChecker.
The point here is that BugChecker needs a linear framebuffer with a format of 32 bits-per-pixel, to draw its interface. When disabling the display drivers, Windows dismisses hardware acceleration for drawing its UI and falls back to VGA compatibility mode. If running on bare metal or VMware, you should disable display drivers. If running on VirtualBox, you should disable display drivers or set the vm_screen setting in BugChecker.dat, as described below. If running on QEMU, you don't need to disable display drivers but make sure to specify the "-vga std" display device.
Note that VGA compatibility mode could limit the maximum screen resolution. VMware is limited to a maximum resolution of 1152x864. QEMU with the "-vga std" display device doesn't suffer from this limitation.
Interestingly if BugChecker is installed on a system with more than one graphics card, it is possible to disable the display drivers of only one graphics card, which will be the card connected to the screen that will show the BugChecker UI. The second card (set as the main display) will retain all its 2D and 3D acceleration features, including OpenGL and DirectX support (NOTE: tested on VMware, with Windows 11 and a DisplayLink display).
Then click on "Start Driver", then on "Auto Detect" and finally on "Save". "Auto Detect" should be able to determine width, height, physical address and stride of the framebuffer automatically. However, you can specify these settings manually (don't forget to click on "Save" when finished). If "Stride" is 0, it is calculated as "Width" * 4 automatically when starting the driver. "Address" (i.e. physical address of the framebuffer) can be get obtained in Windows Device Manager, by clicking on "Properties" of the display device, under the "Resources" tab.
Then click on "Callback" in the "KDCOM Hook Method" section, then on "Copy/Replace Kdcom" and finally you can reboot the system.
This setup process has to be done only once and the display drivers can be re-enabled, if necessary. When using BugChecker however the display drivers must be disabled again, if required by your configuration.
The vm_screen setting in BugChecker.dat allows to open the BugChecker debugger UI in VirtualBox without specifying in advance a screen resolution in Symbol Loader and without disabling display drivers.
The idea is to write directly to the I/O ports and to the Command Buffer of the virtual display device in order to obtain the current screen resolution and to notify the hypervisor of any update in the framebuffer.
This solution was inspired by the X.org xf86-video-vmware driver.
This solution works only for VirtualBox VMs and by editing manually the BugChecker.dat file:
This is an experimental feature. In the future, this setting will be automatically added by Symbol Loader.
The command name and syntax are chosen to be as close as possible to those of the original SoftICE for NT:
Note: WDK should be installed in its default location, i.e. X:\WinDDK, where X is the drive where the BugChecker sources are saved.
Something looks a little…sketchy. Is that website safe or unsafe?
Nowadays, it can take a bit of work to tell.
And that’s by design. Increasingly, hackers and scammers go to great pains when they create their malicious websites. They take extra steps to make their sites look legit, when in fact they’re anything but. Certainly, plenty of other hackers and scammers slap together malicious sites that still look a bit roughshod, which makes them easier to spot.
So whether it’s a clever knockoff or a slapdash effort, unsafe websites of all kinds have several telltale signs you can spot. We’ll show you, and let’s start things off with what makes an unsafe website unsafe in the first place.
Unsafe websites typically harbor one of two primary forms of attack—yet sometimes both:
Malware: Hackers will use their sites to install malware on your device, often by tricking you into clicking or tapping on a download. They might tempt you with an offer, a prize, a show to stream—just about anything you might want to otherwise download. (Recently, we saw hackers installing malware on sites that offered to stream dubbed versions of the “Barbie” movie.)
Phishing: Another classic attack. Phishing involves scammers who try to hoodwink you into providing account or financial information. Common ruses include links in emails, texts, and DMs that appear to be urgent messages from streaming services, banks, social media, and other accounts. Of course, those messages are phony.
As a result, unsafe websites can lead to some not-so-good things.
On the malware side, attackers can install spyware and similar apps that siphon financial and personal information from your device while you’re using it. Other malware might steal files outright or maliciously delete them altogether. Ransomware remains a major concern today as well, where attackers hold devices and data hostage. And even if victims end up paying the ransom, they have no guarantee that the attacker will free their device or data.
Phishing attacks often lead to financial headaches, sometimes large ones at that. It depends on the information scammers get their hands on. In some cases, the damage might lead to identity fraud and a few illicit charges on a debit or credit card. If scammers gather enough information, they can take that a step further and commit identity theft. That can include opening new credit or loans in your name. It could also give a scammer the info they need to get driver’s licenses or employment in your name.
Above and beyond committing fraud or theft on their own, scammers might also sell stolen information to others on the dark web.
Again, all not-so-good. Yet quite preventable.
For some sites, it only takes one sign. For other sites, it takes a few signs—a series of red flags that warn you a site is unsafe. When you’re online, keep a sharp eye out for the following:
The site uses HTTP rather than HTTPS
The “s” stands for “secure.” Specifically, it means that the website uses SSL (Secure Sockets Layer) that creates an encrypted link between a web server and a web browser. SSL helps prevent others from intercepting and reading your sensitive information as it’s transmitted, which is particularly important when you shop or bank online. Likewise, you can also look for a little lock symbol in the address bar of your web browser. That’s one more way you can spot a site that uses SSL.
The site has a combination of typos and poor design
From spelling errors and grammatical mistakes, to stretched-out logos and cheap photography, some unsafe websites are designed poorly. Legitimate businesses pride themselves on error-free and professional-looking sites. If a website looks like it got cobbled together in a hurry or doesn’t seem to be well-designed, that’s usually a red flag. The site might be unsafe, created by attackers who don’t have strong attention to detail—or the creative capabilities to create a good-looking website in the first place.
The web address looks altered or off
Plenty of unsafe sites are imposter sites. They’ll try to pass themselves off as a legitimate company, like the streaming services, banks, and so forth that we mentioned earlier—all to get a hold of your account information. With all these imposter sites in play, look at the site’s address. Scammers will gin up web addresses that are close to but different from legitimate sites, so close that you might miss it. If you’re uncertain about the address, leave the page. Also, note that many companies have web pages that provide lists of the official addresses that they use. Amazon provides an example, and we do the same here at McAfee. Reviewing these lists can help you spot an imposter site.
The site says you have a security issue
A window or graphic pops up on your screen. The site you’re on says that it’s identified a security issue with your device. Or maybe it says that your system isn’t current. Either way, there’s a file the site wants you to download. “You can correct the issue with a click!” Don’t. It’s a classic trick. Instead of fixing your non-existent problem, the download will create one. Scammers use the security alert trick to install malware on the devices of unsuspecting victims.
The site floods you with pop-ups or links to click
A screen full of links insisting you click ranks among the top signs of an unsafe site. So much so, it’s often the subject of sitcom bits. Needless to say, the attackers behind these sites want you to click for one of several reasons. It might be to get you to download malware. It might be to generate ad revenue with clicks. Or it might be to get you to click a link that redirects you to another malicious site. In all, if you encounter a site like this, close your browser. And then run a system scan with your online protection software.
The site offers hard-to-get items at an outrageous discount
These unsafe sites sprout up around the holidays and gift-giving seasons. When stores run low on particularly popular or hot items, scammers will quickly launch sites that claim these items are in stock and ready to ship. Similarly, they might promote popular items at a deep discount. Of course, shopping at these sites will likely lead to one thing—a credit card charge and no item on your doorstep. Be wary when you see ads for stores in your social media feed, in search, and elsewhere. Stick with known, trusted retailers. (And for more on shopping safely online, give this article a quick read.)
The site promises access to hot shows, movies, and sporting events
These sites bear similarities to malicious online shopping sites. When popular movies hit the big screen or major sporting events come around, so do scam sites that promise to stream them for free or at a low cost. Avoid them. Trusted streamers will only carry shows and events that they have the rights to. If you find an offer to stream something that’s heavily discounted, free, or not available on known media outlets, it’s likely a scam. At the very least, it might serve up pirated content, which could carry malware threats along with it.
The site promotes prizes, coupons, or a quiz
Not every site that promotes some kind of giveaway or deal is a scam. Yet the ones that ask for personal or financial information likely are. Scammers prey on people’s love for saving money or even winning a buck or two. Enter the prize, coupon, and quiz sites. Malicious prize and coupon sites will often ask for credit or debit card information, often under the guise of a payout or a discount. Malicious quiz sites will likewise ask for all kinds of personal information, typically questions about the name of your pet, the first car you owned, or where you went to school. The questions share much in common with the security questions used by banks and credit card companies. Handing this information over could lead to a breached account. Give these sites a pass.
Comprehensive online protection software like ours includes web protection that can spot malicious sites for you. It has further features that can prevent downloading malware by accident, not to mention strong antivirus protection if a hacker makes their way through to you. In all, it gives you extra confidence that wherever your travels take you online, you’re protected from sketchy and unsafe sites.
However, another part of your best defense against unsafe websites is you. Knowing what the red flags are and the kinds of information hackers want to steal can help you avoid their attacks from the start.
The post How to Tell Whether a Website Is Safe or Unsafe appeared first on McAfee Blog.
