Attacks/Breaches
7/10/2009
04:35 PM
Connect Directly
Google+
Twitter
RSS
E-Mail
50%
50%

Twitter Suspends User Accounts Infected With Koobface Worm

Researchers say worm sends tweets with a variety of URLs that lead victims to malware infection

Twitter is warning members that the Koobface worm is on the loose in the Twitterverse, and that the social network is temporarily suspending any accounts it discovers spreading the worm.

In a blog post last night, Twitter said some Twitter users' PCs were infected with a variant of Koobface, which sends phony tweets when the infected user logs onto his or her Twitter account.

"We are currently suspending all accounts that we detect sending such bogus tweets. If we suspend your account, we will send you an email notifying you of the suspension. This email also includes tips for removing the malware from your PC," the Twitter blog said.

As in previous attacks on other social networking sites, the worm's mode of infection is a phony video link that, when clicked, infects the user with the worm. Among the Koobface tweets are messages similar to ones Koobface used on Facebook -- "My home video," "Watch my new private video! LOL :)" and some links purportedly to Michael Jackson video clips, according to Graham Cluley, senior technology consultant for Sophos. Cluley blogged about the attacks today.

Koobface has been used to target users on Facebook, MySpace, and other social networking sites during the past year, spreading via an infected member's profile to his friends' profiles.

And the worm won't die: Kaspersky Lab has reported a big surge in the number of Koobface variants in June, to about 1,000 -- up from 324 in May.

Trend Micro researchers had detected the jump in Koobface activity last night and this morning; the worm sent tweets with a variety of URLs that lead to the malware. "This is in contrast with previous Koobface Twitter activity wherein only three TinyURLs pointing to Koobface were used," blogged Ryan Flores, advanced threats researcher for Trend Micro, which initially detected hundreds of infected Twitter accounts in just a few hours last night.

It was unclear at this posting just how many accounts had been affected and suspended by Twitter. Twitter had not responded to requests for an interview and update on the attack.

Koobface is the latest of a series of attacks lobbed at Twitter recently -- the microblogging site also was hit with a pair of phishing attacks in May.

Have a comment on this story? Please click "Discuss" below. If you'd like to contact Dark Reading's editors directly, send us a message. Kelly Jackson Higgins is Executive Editor at DarkReading.com. She is an award-winning veteran technology and business journalist with more than two decades of experience in reporting and editing for various publications, including Network Computing, Secure Enterprise ... View Full Bio

Comment  | 
Print  | 
More Insights
Register for Dark Reading Newsletters
White Papers
Cartoon
Current Issue
Dark Reading December Tech Digest
Experts weigh in on the pros and cons of end-user security training.
Flash Poll
Video
Slideshows
Twitter Feed
Dark Reading - Bug Report
Bug Report
Enterprise Vulnerabilities
From DHS/US-CERT's National Vulnerability Database
CVE-2014-1421
Published: 2014-11-25
mountall 1.54, as used in Ubuntu 14.10, does not properly handle the umask when using the mount utility, which allows local users to bypass intended access restrictions via unspecified vectors.

CVE-2014-3605
Published: 2014-11-25
** REJECT ** DO NOT USE THIS CANDIDATE NUMBER. ConsultIDs: CVE-2014-6407. Reason: This candidate is a reservation duplicate of CVE-2014-6407. Notes: All CVE users should reference CVE-2014-6407 instead of this candidate. All references and descriptions in this candidate have been removed to pre...

CVE-2014-7839
Published: 2014-11-25
DocumentProvider in RESTEasy 2.3.7 and 3.0.9 does not configure the (1) external-general-entities or (2) external-parameter-entities features, which allows remote attackers to conduct XML external entity (XXE) attacks via unspecified vectors.

CVE-2014-8001
Published: 2014-11-25
Buffer overflow in decode.cpp in Cisco OpenH264 1.2.0 and earlier allows remote attackers to execute arbitrary code via an encoded media file.

CVE-2014-8002
Published: 2014-11-25
Use-after-free vulnerability in decode_slice.cpp in Cisco OpenH264 1.2.0 and earlier allows remote attackers to execute arbitrary code via an encoded media file.

Best of the Web
Dark Reading Radio
Archived Dark Reading Radio
Now that the holiday season is about to begin both online and in stores, will this be yet another season of nonstop gifting to cybercriminals?