![]() Rather, the terms state that FederalJobsCenter is affiliated with an entity called US Job Services, which says it is based in Lawrenceville, Ga. ![]() ![]() These sites also sell training, supposedly to help ace an interview with USPS human resources.įederalJobsCenter’s website is full of content that makes it appear the site is affiliated with the USPS, although its “terms and conditions” state that it is not. Sites like FederalJobsCentercom also show up prominently in Google search results for USPS employment, and steer applicants toward making credit card “registration deposits” to ensure that one’s application for employment is reviewed. KrebsOnSecurity was recently contacted by a security researcher who said he found a huge tranche of full credit card records exposed online, and that at first glance the domain names involved appeared to be affiliated with the USPS.įurther investigation revealed a long-running international operation that has been emailing and text messaging people for years to sign up at a slew of websites that all promise they can help visitors secure employment at the USPS. The website FederalJobsCenter promises to get you a job at the USPS in 30 days or your money back. However, the link between Kulkov and Try2Check can be made - ironically - based on records that have been plundered by hackers and published online over the years - including Russian email services, Russian government records, and hacked cybercrime forums. investigators that they had access to a wealth of personal information tied to a cryptocurrency exchange Kulkov had used. In Kulkov’s case, it no doubt was critical to U.S. Like many other top cybercriminals based in Russia or in countries with favorable relations to the Kremlin, the proprietor of Try2Check was not particularly difficult to link to a real-life identity. Authorities were able to identify that Kulkov had an iCloud account tied to the address and upon subpoenaing that found passport photos of Kulkov, and well as more photos of his family and pricey cars. Investigators had already found Instagram accounts where Kulkov posted pictures of his Ferrari and his family. law enforcement seized the cryptocurrency exchange BTC-e, and the Secret Service said those records show that a Denis Kulkov from Samara supplied the username “ Nordexin,” email address and an address in Samara. He asked interested partners to contact him at the ICQ number 228427661 or at the email address As the government noted in its search warrant, Nordex exchanged messages with forum users at the time identifying himself as a then-24-year-old “Denis” from Samara, RU. In February 2005, Nordex posted to Mazafaka that he was in the market for hacked bank accounts, and offered 50 percent of the take. In November 2021, the State Department began offering up to to $10 million for the name or location of any key leaders of REvil, a major Russian ransomware gang.Īs noted in the Secret Service’s criminal complaint (PDF), the Try2Check service was first advertised on the closely-guarded Russian cybercrime forum Mazafaka, by someone using the handle “ KreenJo.” That handle used the same ICQ instant messenger account number ( 555724) as a Mazafaka denizen named “ Nordex.” Department of State issued a $10 million reward for information leading to the arrest or conviction of Kulkov. law enforcement.Īt the same time, the U.S. Try2Check’s login pages have been replaced with a seizure notice from U.S. Department of Justice, as prosecutors in the Eastern District of New York unsealed an indictment and search warrant naming Denis Gennadievich Kulkov of Samara, Russia as the proprietor. On Wednesday, May 3, Try2Check’s websites were replaced with a domain seizure notice from the U.S. But in general, the bigger shops have steered customers toward using their own white-labeled version of the Try2Check service - primarily to help minimize disputes over canceled cards. Many established stolen card shops will allow customers to request refunds on dead cards based on official reports from trusted third-party checking services. Customers of these carding shops who chose to use the shop’s built-in (but a-la-carte) card checking service from Try2Check could expect automatic refunds on any cards that were found to be inactive or canceled at the time of purchase. ![]() Try2Check was so reliable that it eventually became the official card-checking service for some of the underground’s most bustling crime bazaars, including Vault Market, Unicc, and Joker’s Stash. Cybercriminals turned to services like this after purchasing stolen credit card data from an underground shop, with an eye toward minimizing the number of cards that are inactive by the time they are put to criminal use. Launched in 2005, Try2Check soon was processing more than a million card-checking transactions per month - charging 20 cents per transaction.
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