Hackers write Windows RDP exploit days after MS warning

Code spotted in the wild, days after Microsoft issued warning to patch

Stewart Mitchell
16 Mar 2012

SophosLabs says it has seen proof-of-concept code which tries to exploit the recently announced Microsoft Remote Desktop Protocol (RDP) vulnerability, causing PCs to crash.

Earlier this week, Microsoft warned people to install security update MS12-020, which addressed a remote code execution vulnerability in RDP affecting all versions of Windows.

At the time, the software giant said it expected to see hackers targeting the weakness within a month, but Sophos believes exploit code has already been written and published on Chinese websites.

“Microsoft warned earlier this week that it expected malicious hackers to exploit the flaw within 30 days. Well, that's already happening," reports a post on the Sophos blog.

"The code we've seen - in the form of Python scripts - attempts to exploit the MS12-020 RDP vulnerability and causes Windows computers to blue screen.”

Although the code was regarded as a proof of concept, Sophos said it wouldn't be a surprise if whoever was writing this code “further developed the attacks to produce a fast-spreading internet worm”.

Sophos repeated Microsoft's warning to patch as soon as possible.

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