Author Archives: BrianKrebs

Bredolab Botmaster ‘Birdie’ Still at Large

March 21, 2012
6 Comments

Employee and financial records leaked from some of the world’s largest sponsors of spam provide new clues about the identity of a previously unknown Russian man believed to have been closely tied to the development and maintenance of “Bredolab,” a massive collection of hacked machines that was disassembled in an international law enforcement sweep in late 2010.

In October 2010, Armenian authorities arrested 27-year-old Georg Avanesov on suspicion of running Bredolab, a botnet that infected an estimated 3 million PCs per month through virus-laden e-mails and booby-trapped Web sites. The arrest resulted from a joint investigation between Armenian police and cyber sleuths in the Netherlands, whose ISPs were home to at least 143 servers used to direct the botnet’s activities.

Twitter Bots Target Tibetan Protests

March 20, 2012
10 Comments

Twitter bots — automated accounts that auto-follow and send junk tweets hawking questionable wares and services — can be an annoyance to anyone who has even a modest number of followers. But increasingly, Twitter bots are being used as a tool to suppress political dissent, as evidenced by an ongoing flood of meaningless tweets directed at hashtags popular for tracking Tibetan protesters who are taking a stand against Chinese rule.

It’s not clear how long ago the bogus tweet campaigns began, but Tibetan sympathizers say they recently noticed that several Twitter hashtags related to the conflict — including #tibet and #freetibet — are now so constantly inundated with junk tweets from apparently automated Twitter accounts that the hashtags have ceased to become a useful way to track the conflict.

Hackers Offer Bounty for Windows RDP Exploit

March 15, 2012
16 Comments

A Web site that bills itself as a place where independent and open source software developers can hire each other has secured promises to award at least $1,435 to the first person who can develop a working exploit that takes advantage of newly disclosed and dangerous security hole in all supported versions of Microsoft Windows.

That reward, which is sure to only increase with each passing day, is offered to any developer who can devise an exploit for one of two critical vulnerabilities that Microsoft patched on Tuesday in its Remote Desktop Protocol (RDP), designed as a way to let administrators control and configure machines remotely over a network.

Aghast at Avast’s iYogi Support

March 14, 2012
135 Comments

The makers of Avast antivirus software are warning users about a new scam involving phone calls from people posing as customer service reps for the company and requesting remote access to user systems. Avast is still investigating the incidents, but a number of users are reporting that the incidents followed experiences with iYogi, the company in India that is handling Avast’s customer support.

A follow-up investigation by KrebsOnSecurity indicates that Avast (among other security companies) is outsourcing its customer support to a third-party firm that appears engineered to do little else but sell expensive and unnecessary support contracts.

RDP Flaws Lead Microsoft’s March Patch Batch

March 13, 2012
28 Comments

Microsoft today released updates to sew up at least seven vulnerabilities in Windows and other software. The sole “critical” update in the bunch patches a particularly dangerous flaw in all supported versions of Windows that allows attackers to seize control over vulnerable systems remotely without authentication.

Hacked Inboxes Lead to Bank Fraud

March 13, 2012
8 Comments

Hacked and phished email accounts increasingly are serving as the staging grounds for bank fraud schemes targeting small businesses. The scams are decidedly low-tech and often result in losses of just a few thousand dollars, but the attacks frequently succeed because they exploit existing trust relationships between banks and their customers.

Last month, scam artists hijacked private email accounts belonging to three different customers of Western National Bank, a small financial institution with seven branches throughout Central and West Texas. In each case, the thieves could see that the victim had previously communicated with bank personnel via email.

Half of All ‘Rogue’ Pharmacies at Two Registrars

March 12, 2012
25 Comments

Half of all “rogue” online pharmacies — sites that sell prescription drugs without requiring a prescription — got their Web site names from just two domain name registrars, a study released today found. The findings illustrate the challenges facing Internet policymakers in an industry that is largely self-regulated and rewards companies who market their services as safe havens for shadowy businesses.

Banking on Badb in the Underweb

March 8, 2012
18 Comments

Underground Web sites can be a useful barometer for the daily volume of criminal trade in goods like stolen credit card numbers and hijacked PayPal or eBay accounts. And if the current low prices at one of Underweb’s newer and… Read More »

Court: 4 More Months for DNSChanger-Infected PCs

March 6, 2012
25 Comments

Millions of PCs sickened by a global computer contagion known as DNSChanger were slated to have their life support yanked on March 8. But an order handed down Monday by a federal judge will delay that event by 120 days to give companies, businesses and governments more time to respond to the epidemic.

The reprieve came late Monday, when the judge overseeing the U.S. government’s landmark case against an international cyber fraud network agreed that extending the deadline was necessary “to continue to provide remediation details to industry channels approved by the FBI.”