Sunday, April 12, 2009

Twitter Worm Outbreak Over Easter

Via F-Secure -

A cross-site scripting worm was spreading in Twitter profiles for several hours last night.

[...]

Many people followed the links to stalkdaily.com, as they believe the messages to be genuine Tweets from their friends. A cross-site script on the site then caused new users to start to Tweet the same messages.

[...]

As expected, the whole worm was a publicity stunt by stalkdaily.com.

You can see the latest official status of Twitter from their status page at status.twitter.com

We detect the script file as Worm:JS/Twettir.A

Updated to add: This is not over. There's going to be quite a few modified Twitter worms for a day or two. Be careful in Twitter, don't view profiles, don't follow links. It's beautiful outside, maybe go for a walk instead?


All these attacks are Javascript-based. Turn Javascript off if you're worried. More info here.

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