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Making Sense of Operational Technology Attacks: The Past, Present, and Future

When you read reports about cyber-attacks affecting operational technology (OT), it’s easy to get caught up in the hype and assume every single one is sophisticated. But are OT environments all over the world really besieged by a constant barrage of complex cyber-attacks? Answering that would require breaking down the different types of OT cyber-attacks and then looking back on all the

CEO of Data Privacy Company Onerep.com Founded Dozens of People-Search Firms

The data privacy company Onerep.com bills itself as a Virginia-based service for helping people remove their personal information from almost 200 people-search websites. However, an investigation into the history of onerep.com finds this company is operating out of Belarus and Cyprus, and that its founder has launched dozens of people-search services over the years.

Onerep’s “Protect” service starts at $8.33 per month for individuals and $15/mo for families, and promises to remove your personal information from nearly 200 people-search sites. Onerep also markets its service to companies seeking to offer their employees the ability to have their data continuously removed from people-search sites.

A testimonial on onerep.com.

Customer case studies published on onerep.com state that it struck a deal to offer the service to employees of Permanente Medicine, which represents the doctors within the health insurance giant Kaiser Permanente. Onerep also says it has made inroads among police departments in the United States.

But a review of Onerep’s domain registration records and that of its founder reveal a different side to this company. Onerep.com says its founder and CEO is Dimitri Shelest from Minsk, Belarus, as does Shelest’s profile on LinkedIn. Historic registration records indexed by DomainTools.com say Mr. Shelest was a registrant of onerep.com who used the email address dmitrcox2@gmail.com.

A search in the data breach tracking service Constella Intelligence for the name Dimitri Shelest brings up the email address dimitri.shelest@onerep.com. Constella also finds that Dimitri Shelest from Belarus used the email address d.sh@nuwber.com, and the Belarus phone number +375-292-702786.

Nuwber.com is a people search service whose employees all appear to be from Belarus, and it is one of dozens of people-search companies that Onerep claims to target with its data-removal service. Onerep.com’s website disavows any relationship to Nuwber.com, stating quite clearly, “Please note that OneRep is not associated with Nuwber.com.”

However, there is an abundance of evidence suggesting Mr. Shelest is in fact the founder of Nuwber. Constella found that Minsk telephone number (375-292-702786) has been used multiple times in connection with the email address dmitrcox@gmail.com. Recall that Onerep.com’s domain registration records in 2018 list the email address dmitrcox2@gmail.com.

It appears Mr. Shelest sought to reinvent his online identity in 2015 by adding a “2” to his email address. The Belarus phone number tied to Nuwber.com shows up in the domain records for comversus.com, and DomainTools says this domain is tied to both dmitrcox@gmail.com and dmitrcox2@gmail.com. Other domains that mention both email addresses in their WHOIS records include careon.me, docvsdoc.com, dotcomsvdot.com, namevname.com, okanyway.com and tapanyapp.com.

Onerep.com CEO and founder Dimitri Shelest, as pictured on the “about” page of onerep.com.

A search in DomainTools for the email address dmitrcox@gmail.com shows it is associated with the registration of at least 179 domain names, including dozens of mostly now-defunct people-search companies targeting citizens of Argentina, Brazil, Canada, Denmark, France, Germany, Hong Kong, Israel, Italy, Japan, Latvia and Mexico, among others.

Those include nuwber.fr, a site registered in 2016 which was identical to the homepage of Nuwber.com at the time. DomainTools shows the same email and Belarus phone number are in historic registration records for nuwber.at, nuwber.ch, and nuwber.dk (all domains linked here are to their cached copies at archive.org, where available).

Nuwber.com, circa 2015. Image: Archive.org.

Update, March 21, 11:15 a.m. ET: Mr. Shelest has provided a lengthy response to the findings in this story. In summary, Shelest acknowledged maintaining an ownership stake in Nuwber, but said there was “zero cross-over or information-sharing with OneRep.” Mr. Shelest said any other old domains that may be found and associated with his name are no longer being operated by him.

“I get it,” Shelest wrote. “My affiliation with a people search business may look odd from the outside. In truth, if I hadn’t taken that initial path with a deep dive into how people search sites work, Onerep wouldn’t have the best tech and team in the space. Still, I now appreciate that we did not make this more clear in the past and I’m aiming to do better in the future.” The full statement is available here (PDF).

Original story:

Historic WHOIS records for onerep.com show it was registered for many years to a resident of Sioux Falls, SD for a completely unrelated site. But around Sept. 2015 the domain switched from the registrar GoDaddy.com to eNom, and the registration records were hidden behind privacy protection services. DomainTools indicates around this time onerep.com started using domain name servers from DNS provider constellix.com. Likewise, Nuwber.com first appeared in late 2015, was also registered through eNom, and also started using constellix.com for DNS at nearly the same time.

Listed on LinkedIn as a former product manager at OneRep.com between 2015 and 2018 is Dimitri Bukuyazau, who says their hometown is Warsaw, Poland. While this LinkedIn profile (linkedin.com/in/dzmitrybukuyazau) does not mention Nuwber, a search on this name in Google turns up a 2017 blog post from privacyduck.com, which laid out a number of reasons to support a conclusion that OneRep and Nuwber.com were the same company.

“Any people search profiles containing your Personally Identifiable Information that were on Nuwber.com were also mirrored identically on OneRep.com, down to the relatives’ names and address histories,” Privacyduck.com wrote. The post continued:

“Both sites offered the same immediate opt-out process. Both sites had the same generic contact and support structure. They were – and remain – the same company (even PissedConsumer.com advocates this fact: https://nuwber.pissedconsumer.com/nuwber-and-onerep-20160707878520.html).”

“Things changed in early 2016 when OneRep.com began offering privacy removal services right alongside their own open displays of your personal information. At this point when you found yourself on Nuwber.com OR OneRep.com, you would be provided with the option of opting-out your data on their site for free – but also be highly encouraged to pay them to remove it from a slew of other sites (and part of that payment was removing you from their own site, Nuwber.com, as a benefit of their service).”

Reached via LinkedIn, Mr. Bukuyazau declined to answer questions, such as whether he ever worked at Nuwber.com. However, Constella Intelligence finds two interesting email addresses for employees at nuwber.com: d.bu@nuwber.com, and d.bu+figure-eight.com@nuwber.com, which was registered under the name “Dzmitry.”

PrivacyDuck’s claims about how onerep.com appeared and behaved in the early days are not readily verifiable because the domain onerep.com has been completely excluded from the Wayback Machine at archive.org. The Wayback Machine will honor such requests if they come directly from the owner of the domain in question.

Still, Mr. Shelest’s name, phone number and email also appear in the domain registration records for a truly dizzying number of country-specific people-search services, including pplcrwlr.in, pplcrwlr.fr, pplcrwlr.dk, pplcrwlr.jp, peeepl.br.com, peeepl.in, peeepl.it and peeepl.co.uk.

The same details appear in the WHOIS registration records for the now-defunct people-search sites waatpp.de, waatp1.fr, azersab.com, and ahavoila.com, a people-search service for French citizens.

The German people-search site waatp.de.

A search on the email address dmitrcox@gmail.com suggests Mr. Shelest was previously involved in rather aggressive email marketing campaigns. In 2010, an anonymous source leaked to KrebsOnSecurity the financial and organizational records of Spamit, which at the time was easily the largest Russian-language pharmacy spam affiliate program in the world.

Spamit paid spammers a hefty commission every time someone bought male enhancement drugs from any of their spam-advertised websites. Mr. Shelest’s email address stood out because immediately after the Spamit database was leaked, KrebsOnSecurity searched all of the Spamit affiliate email addresses to determine if any of them corresponded to social media accounts at Facebook.com (at the time, Facebook allowed users to search profiles by email address).

That mapping, which was done mainly by generous graduate students at my alma mater George Mason University, revealed that dmitrcox@gmail.com was used by a Spamit affiliate, albeit not a very profitable one. That same Facebook profile for Mr. Shelest is still active, and it says he is married and living in Minsk [Update, Mar. 16: Mr. Shelest’s Facebook account is no longer active].

The Italian people-search website peeepl.it.

Scrolling down Mr. Shelest’s Facebook page to posts made more than ten years ago show him liking the Facebook profile pages for a large number of other people-search sites, including findita.com, findmedo.com, folkscan.com, huntize.com, ifindy.com, jupery.com, look2man.com, lookerun.com, manyp.com, peepull.com, perserch.com, persuer.com, pervent.com, piplenter.com, piplfind.com, piplscan.com, popopke.com, pplsorce.com, qimeo.com, scoutu2.com, search64.com, searchay.com, seekmi.com, selfabc.com, socsee.com, srching.com, toolooks.com, upearch.com, webmeek.com, and many country-code variations of viadin.ca (e.g. viadin.hk, viadin.com and viadin.de).

The people-search website popopke.com.

Domaintools.com finds that all of the domains mentioned in the last paragraph were registered to the email address dmitrcox@gmail.com.

Mr. Shelest has not responded to multiple requests for comment. KrebsOnSecurity also sought comment from onerep.com, which likewise has not responded to inquiries about its founder’s many apparent conflicts of interest. In any event, these practices would seem to contradict the goal Onerep has stated on its site: “We believe that no one should compromise personal online security and get a profit from it.”

The people-search website findmedo.com.

Max Anderson is chief growth officer at 360 Privacy, a legitimate privacy company that works to keep its clients’ data off of more than 400 data broker and people-search sites. Anderson said it is concerning to see a direct link between between a data removal service and data broker websites.

“I would consider it unethical to run a company that sells people’s information, and then charge those same people to have their information removed,” Anderson said.

Last week, KrebsOnSecurity published an analysis of the people-search data broker giant Radaris, whose consumer profiles are deep enough to rival those of far more guarded data broker resources available to U.S. police departments and other law enforcement personnel.

That story revealed that the co-founders of Radaris are two native Russian brothers who operate multiple Russian-language dating services and affiliate programs. It also appears many of the Radaris founders’ businesses have ties to a California marketing firm that works with a Russian state-run media conglomerate currently sanctioned by the U.S. government.

KrebsOnSecurity will continue investigating the history of various consumer data brokers and people-search providers. If any readers have inside knowledge of this industry or key players within it, please consider reaching out to krebsonsecurity at gmail.com.

Update, March 15, 11:35 a.m. ET: Many readers have pointed out something that was somehow overlooked amid all this research: The Mozilla Foundation, the company that runs the Firefox Web browser, has launched a data removal service called Mozilla Monitor that bundles OneRep. That notice says Mozilla Monitor is offered as a free or paid subscription service.

“The free data breach notification service is a partnership with Have I Been Pwned (“HIBP”),” the Mozilla Foundation explains. “The automated data deletion service is a partnership with OneRep to remove personal information published on publicly available online directories and other aggregators of information about individuals (“Data Broker Sites”).”

In a statement shared with KrebsOnSecurity.com, Mozilla said they did assess OneRep’s data removal service to confirm it acts according to privacy principles advocated at Mozilla.

“We were aware of the past affiliations with the entities named in the article and were assured they had ended prior to our work together,” the statement reads. “We’re now looking into this further. We will always put the privacy and security of our customers first and will provide updates as needed.”

PPLcontrol - Controlling Windows PP(L)s

By: Zion3R


This tool allows you to list protected processes, get the protection level of a specific process, or set an arbitrary protection level. For more information, you can read this blog post: Debugging Protected Processes.


Usage

1. Download the MSI driver

You can get a copy of the MSI driver RTCore64.sys here: PPLKiller/driver.

2. Install the MSI driver

Disclaimer: it goes without saying that you should never install this driver on your host machine. Use a VM!

sc.exe create RTCore64 type= kernel start= auto binPath= C:\PATH\TO\RTCore64.sys DisplayName= "Micro - Star MSI Afterburner"
net start RTCore64

3. Use PPLcontrol

List protected processes.

PPLcontrol.exe list

Get the protection level of a specific process.

PPLcontrol.exe get 1234

Set an arbitrary protection level.

PPLcontrol.exe set 1234 PPL WinTcb

Protect a non-protected process with an arbitrary protection level. This will also automatically adjust the signature levels accordingly.

PPLcontrol.exe protect 1234 PPL WinTcb

Unprotect a protected process. This will set the protection level to 0 (i.e. None) and the EXE/DLL signature levels to 0 (i.e. Unchecked).

PPLcontrol.exe unprotect 1234

4. Uninstall the driver

net stop RTCore64
sc.exe delete RTCore64

Use cases

Debugging a protected process with WinDbg

WinDbg just needs to open the target process, so you can use PPLcontrol to set an arbitrary protection level on your windbg.exe process.

  1. Get the PID of the windbg.exe process.
  2. Use PPLcontrol to set an arbitrary protection level.
Console 1 24,840 K C:\Temp>PPLcontrol.exe protect 1232 PPL WinTcb [+] The Protection 'PPL-WinTcb' was set on the process with PID 1232, previous protection was: 'None-None'. [+] The Signature level 'WindowsTcb' and the Section signature level 'Windows' were set on the process with PID 1232." dir="auto">
C:\Temp>tasklist | findstr /i windbg
windbg.exe 1232 Console 1 24,840 K
C:\Temp>PPLcontrol.exe protect 1232 PPL WinTcb
[+] The Protection 'PPL-WinTcb' was set on the process with PID 1232, previous protection was: 'None-None'.
[+] The Signature level 'WindowsTcb' and the Section signature level 'Windows' were set on the process with PID 1232.

Inspecting a protected process with API Monitor

In addition to opening the target process, API monitor injects a DLL into it. Therefore, setting an arbitrary protection level on your apimonitor.exe process won't suffice. Since the injected DLL is not properly signed for this purpose, the Section signature flag of the target process will likely prevent it from being loaded. However, you can temporarily disable the protection on the target process, start monitoring it, and restore the protection right after.

Failed to load module in target process - Error: 577, Windows cannot verify the digital signature for this file. A recent hardware or software change might have installed a file that is signed incorrectly or damaged, or that might be malicious software from an unknown source.
  1. Get the PID of the target process.
  2. Use PPLcontrol to get the protection level of the target process.
  3. Unprotect the process.
  4. Start monitoring the process with API Monitor.
  5. Restore the protection of the target process.
C:\Temp>tasklist | findstr /i target
target.exe 1337 Services 1 14,160 K
C:\Temp>PPLcontrol.exe get 1337
[+] The process with PID 1337 is a PPL with the Signer type 'WinTcb' (6).
C:\Temp>PPLcontrol.exe unprotect 1337
[+] The process with PID 1337 is no longer a PP(L).

C:\Temp>PPLcontrol.exe protect 1337 PPL WinTcb
[+] The Protection 'PPL-WinTcb' was set on the process with PID 1337, previous protection was: 'None-None'.
[+] The Signature level 'WindowsTcb' and the Section signature level 'Windows' were set on the process with PID 1337.

Build

  1. Open the solution in Visual Studio.
  2. Select Release/x64 (x86 is not supported and will probably never be).
  3. Build solution

Credit



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