Exploit This

Security News, Exploits, and Vulnerabilities.

Who Ran Leakedsource.com?

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.

‘Top 10 Spammer’ Indicted for Wire Fraud

Michael A. Persaud, a California man profiled in a Nov. 2014 KrebsOnSecurity story about a junk email purveyor tagged as one of the World’s Top 10 Worst Spammers, was indicted this week on federal wire fraud charges tied to an alleged spamming operation.

IRS: Scam Blends CEO Fraud, W-2 Phishing

Most regular readers here are familiar with CEO fraud — e-mail scams in which the attacker spoofs the boss and tricks an employee at the organization into wiring funds to the fraudster. Loyal readers also have heard an earful about W-2 phishing, in which crooks impersonate the boss and request a copy of all employee tax forms. According to a new “urgent alert” issued by the U.S. Internal Revenue Service, scammers are now combining both schemes and targeting a far broader range of organizations than ever before.

A Shakeup in Russia’s Top Cybercrime Unit

A chief criticism I heard from readers of my book, Spam Nation: The Inside Story of Organized Cybercrime, was that it dealt primarily with petty crooks involved in petty crimes, while ignoring more substantive security issues like government surveillance and cyber war. But now it appears that the chief antagonist of Spam Nation is at the dead center of an international scandal involving the hacking of U.S. state electoral boards in Arizona and Illinois, the sacking of Russia’s top cybercrime investigators, and the slow but steady leak of unflattering data on some of Russia’s most powerful politicians.

DNI: Putin Led Cyber, Propaganda Effort to Elect Trump, Denigrate Clinton

Russian President Vladimir Putin directed a massive propaganda and cyber attack operation aimed at discrediting Hillary Clinton and getting Donald Trump elected, the top U.S. intelligence agencies said in a remarkable yet unshocking report released on Friday.

‘Operation Tarpit’ Targets Customers of Online Attack-for-Hire Services

Federal investigators in the United States and Europe last week arrested nearly three-dozen people suspected of patronizing so-called “booter” services that can be hired to knock targeted Web sites offline. The global crackdown is part of an effort by authorities to weaken demand for these services by impressing upon customers that hiring someone to launch cyberattacks on your behalf can land you in jail.

‘Avalanche’ Global Fraud Ring Dismantled

In what’s being billed as an unprecedented global law enforcement response to cybercrime, federal investigators in the United States, United Kingdom and Europe today say they’ve dismantled a sprawling cybercrime machine known as “Avalanche” — a distributed, cloud-hosting network that for the past seven years has been rented out to fraudsters for use in launching countless malware and phishing attacks.

Hackforums Shutters Booter Service Bazaar

Perhaps the most bustling marketplace on the Internet where people can compare and purchase so-called “booter” and “stresser” subscriptions — attack-for-hire services designed to knock Web sites offline — announced last week that it has permanently banned the sale and advertising of these services.

DDoS Mitigation Firm Has History of Hijacks

Last week, KrebsOnSecurity detailed how BackConnect Inc. — a company that defends victims against large-scale distributed denial-of-service (DDoS) attacks — admitted to hijacking hundreds of Internet addresses from a European Internet service provider in order to glean information about attackers who were targeting BackConnect. According to an exhaustive analysis of historic Internet records, the BackConnect appears to have a history of such “hacking back” activity.

Ransomware Getting More Targeted, Expensive

I shared a meal not long ago with a source who works at a financial services company. The subject of ransomware came up and he told me that a server in his company had recently been infected with a particularly nasty strain that spread to several systems before the outbreak was quarantined. He said the folks in finance didn’t bat an eyelash when asked to authorize several payments of $600 to satisfy the Bitcoin ransom demanded by the intruders: After all, my source confessed, the data on one of the infected systems was worth millions — possibly tens of millions — of dollars, but for whatever reason the company didn’t have backups of it.

This anecdote has haunted me because it speaks volumes about what we can likely expect in the very near future from ransomware — malicious software that scrambles all files on an infected computer with strong encryption, and then requires payment from the victim to recover them.

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