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  • (01. January 2010., 09:27:49)

Author Topic: Thieves use Twitter as botnet command channel (Banker Trojans, upd4t3)  (Read 1614 times)

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    • - Samker's Computer Forum

Arbor Networks security researcher Jose Nazario has stumbled upon a crimeware botnet using Twitter as its command-and-control operation.

The botnet, which is linked to identity thieves in Brazil, uses Twitter status messages to communicate with bots — sending new links for the infected computers to contact and new commands and executables to download and run.

Above is a pics from Twitter account in question.

“It’s an infostealer operation,” Nazario explained.

He said the bots are sending data to URLs linked to Brazilian criminals that specialize in banker Trojans:

Banker Trojans are used to steal logins, passwords, PINs, check words and other information from bank websites.

The stolen information is usually uploaded to a hacker’s website using a webform. The most vulnerable are users of on-line banks and payment systems that have logins and passwords that do not change every time a user logs on. That is why many banks are now switching to one-time passwords that expire after being used once.

Nazario said there are quite a few Twitter accounts being used to control botnets.  Twitter’s security team is aware of the issue.  Some of the malicious accounts have already been deleted.


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