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Earlier today, Microsoft released Security Advisory (981374). This advisory covers CVE-2010-0806, an unpatched vulnerability affecting Internet Explorer versions 6 and 7. This attack appears to be rather targeted at the moment, but as with other unpatched vulnerabilities in the past, this has the potential to explode now that the word is getting out.
McAfee Labs is aware of an attack emanating from the domain topix21century.com (over both http and https). In this attack, vulnerable users are directed to a malicious webpage that downloads and executes a file named notes.exe or svohost.exe (classified as BackDoor-EMN) in drive-by download fashion (visiting the page is enough to get infected). There are multiple variants of this trojan involved. Notes.exe creates two copies of itself in the %temp% directory, and drops a DLL file. This DLL file is injected into Internet Explorer and provides remote access to an attacker.
The backdoor allows an attacker to perform various functions on the compromised system, including uploading & downloading files, executing files, and terminating running processes. Infected systems may attempt to communicate with the domain notes.topix21century.com over https.
File names related to this attack include:
Preliminary product coverage is as follows:
McAfee Labs is investigating this attack further and will continue to monitor any related activity closely.
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http://www.theregister.co.uk/2010/03/12/ie_metasploit_0day_flaw/
McAfee inadvertently speeds creation of Metaploit IE exploit pack
A security researcher has credited McAfee for helping him to develop exploit code that cracks open an unpatched flaw in older versions of Internet Explorer. Moshe Ben Abu (AKA Trancer00t) developed exploit code for the flaw in IE 6 and 7 in knocking-up an exploit module for the open-source Metasploit exploit database. “I didn’t find the vuln’, just found it in the wild. With a little help from McAfee (http://j.mp/c4W3xA)
,” the Israeli security researcher noted in a Twitter update on Thursday. Microsoft acknowledged that the flaw, which stems from an invalid pointer reference, affects IE 6 and 7 and creates a possible mechanism for hackers to drop malware onto vulnerable systems. IE8, the latest version of Microsoft’s web surfing software, isn’t vulnerable.
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http://www.theregister.co.uk/2010/03/12/ie_metasploit_0day_flaw/
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