Wikipedia Hijacked to Spread Malware
| by Sharon Khare |
Computer users are being warned against opening unsolicited mails after hackers took advantage of the popular Wikipedia encyclopedia in their attempt to spread malicious code.
Wikipedia allows anyone to create and modify articles, a policy of openness which has often been abused by mischief-makers in the past. Taking advantage of this fact, an article on the German edition of Wikipedia, de.wikipedia.org, was created by hackers claiming to include a link to a fix for a supposedly new version of the Blaster worm. However, the 'fix' was actually a piece of malicious code, designed to infect visitors' PCs.
Hackers then spammed out an email to German computer users, claiming to come from Wikipedia, and directing them to information about the 'new worm'.
"The good news is that the authorities at Wikipedia quickly identitifed and edited the article on their site," said Graham Cluley, senior technology consultant for Sophos. "Unfortunately, however, the previous version of the page was still present in the archive and was continuing to point to malicious code. The hackers were thus able to send out spam pointing people to the page on Wikipedia, and try and lead them into infection."
Wikipedia has now confirmed that it has permanently erased the archived version of the page.
"The very openness of websites like Wikipedia—which allow anyone to edit pages—makes them terrific, but can also make them less trustworthy. In this case, it wasn't just that the information posted in Wikipedia's articles was misleading, it was downright malicious," continued Cluley. "Everyone should exercise caution and ensure they have appropriate defenses in place to protect their computer systems. Additionally, people should remember that if there really is a new threat on the internet, you're likely to hear about it first from the security companies, not an online encyclopedia."
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