Tag Archives: DomainTools.com

Ask Fitis, the Bear: Real Crooks Sign Their Malware

June 1, 2023
13 Comments

Code-signing certificates are supposed to help authenticate the identity of software publishers, and provide cryptographic assurance that a signed piece of software has not been altered or tampered with. Both of these qualities make stolen or ill-gotten code-signing certificates attractive to cybercriminal groups, who prize their ability to add stealth and longevity to malicious software. This post is a deep dive on “Megatraffer,” a veteran Russian hacker who has practically cornered the underground market for malware focused code-signing certificates since 2015.

A Serial Tech Investment Scammer Takes Up Coding?

April 3, 2023
11 Comments

John Clifton Davies, a 60-year-old con man from the United Kingdom who fled the country in 2015 before being sentenced to 12 years in prison for fraud, has enjoyed a successful life abroad swindling technology startups by pretending to be a billionaire investor. Davies’ newest invention appears to be “CodesToYou,” which purports to be a “full cycle software development company” based in the U.K.

Who’s Behind the ‘Web Listings’ Mail Scam?

March 23, 2020
33 Comments

In December 2018, KrebsOnSecurity looked at how dozens of U.S. political campaigns, cities and towns had paid a shady company called Web Listings Inc. after receiving what looked like a bill for search engine optimization (SEO) services rendered on behalf of their domain names. The story concluded that this dubious service had been scamming people and companies for more than a decade, and promised a Part II to explore who was behind Web Listings. What follows are some clues that point to a very convincing answer to that question.

The Case for Limiting Your Browser Extensions

March 3, 2020
71 Comments

Last week, KrebsOnSecurity reported to health insurance provider Blue Shield of California that its Web site was flagged by multiple security products as serving malicious content. Blue Shield quickly removed the unauthorized code. An investigation determined it was injected by a browser extension installed on the computer of a Blue Shield employee who’d edited the Web site in the past month.

The incident is a reminder that browser extensions — however useful or fun they may seem when you install them — typically have a great deal of power and can effectively read and/or write all data in your browsing sessions. And as we’ll see, it’s not uncommon for extension makers to sell or lease their user base to shady advertising firms, or in some cases abandon them to outright cybercriminals.

French Firms Rocked by Kasbah Hacker?

March 2, 2020
21 Comments

A large number of French critical infrastructure firms were hacked as part of an extended malware campaign that appears to have been orchestrated by at least one attacker based in Morocco, KrebsOnSecurity has learned. The individual thought to be involved has earned accolades from the likes of Apple, Dell, and Microsoft for helping to find and fix security vulnerabilities in their products.

Hackers Sell Access to Bait-and-Switch Empire

March 4, 2019
38 Comments

Cybercriminals are auctioning off access to customer information stolen from an online data broker behind a dizzying array of bait-and-switch Web sites that sell access to a vast range of data on U.S. consumers, including DMV and arrest records, genealogy reports, phone number lookups and people searches. In an ironic twist, the marketing empire that owns the hacked online properties appears to be run by a Canadian man who’s been sued for fraud by the U.S. Federal Trade Commission, Microsoft and Oprah Winfrey, to name a few.

Trump’s Dumps: ‘Making Dumps Great Again’

May 26, 2017
56 Comments

It’s not uncommon for crooks who peddle stolen credit cards to seize on iconic American figures of wealth and power in the digital advertisements for these shops that run continuously on various cybercrime forums. Exhibit A: McDumpals, a hugely popular carding site that borrows the Ronald McDonald character from McDonald’s and caters to bulk buyers. Exhibit B: Uncle Sam’s dumps shop, which wants YOU! to buy American. Today, we’ll look at an up and coming credit card shop called Trump’s-Dumps, which invokes 45’s likeness and promises to “make credit card fraud great again.”

Who Ran Leakedsource.com?

February 15, 2017
96 Comments

Late last month, multiple news outlets reported that unspecified law enforcement officials had seized the servers for Leakedsource.com, perhaps the largest online collection of usernames and passwords leaked or stolen in some of the worst data breaches — including billions of credentials for accounts at top sites like LinkedIn, Myspace, and Yahoo.

In a development that may turn out to be deeply ironic, it seems that the real-life identity of Leakedsource’s principal owner may have been exposed by many of the same stolen databases he’s been peddling.

Spreading the DDoS Disease and Selling the Cure

October 19, 2016
59 Comments

Earlier this month a hacker released the source code for Mirai, a malware strain that was used to launch a historically large 620 Gbps denial-of-service attack against this site in September. That attack came in apparent retribution for a story here which directly preceded the arrest of two Israeli men for allegedly running an online attack for hire service called vDOS. Turns out, the site where the Mirai source code was leaked had some very interesting things in common with the place vDOS called home.

The Reincarnation of a Bulletproof Hoster

August 3, 2016
48 Comments

In April 2016, security firm Trend Micro published a damning report about a Web hosting provider referred to only as a “cyber-attack facilitator in the Netherlands.” If the Trend analysis lacked any real punch that might have been because — shortly after the report was published — names were redacted so that it was no longer immediately clear exactly who the bad hosting provider was. This post aims to shine a bit more light on the individuals apparently behind this mysterious rogue hosting firm — a company called HostSailor[dot]com.