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This malicious script was inserted onto a legitimate website of the US Department of Labor and downloads a Poison Ivy backdoor.
To get a one-glance comprehensive view of the behavior of this Trojan, refer to the Threat Diagram shown below.
This Trojan executes when a user accesses certain websites where it is hosted.
This Trojan accesses the following websites to download files:
This Trojan is hosted from the following website:
It loads the following sites where its component for decoding base64 can be found:
It takes advantage of the following vulnerability in Internet Explorer (IE) 8 to download the malicious file:
Before doing any scans, Windows XP, Windows Vista, and Windows 7 users must disable System Restore to allow full scanning of their computers.
Remove malware/grayware files dropped/downloaded by JS_EXPLOIT.MEA
Close all opened browser windows
Scan your computer with your Trend Micro product to delete files detected as JS_EXPLOIT.MEA. If the detected files have already been cleaned, deleted, or quarantined by your Trend Micro product, no further step is required. You may opt to simply delete the quarantined files. Please check this Knowledge Base page for more information.
Download and apply this security patch Refrain from using these products until the appropriate patches have been installed. Trend Micro advises users to download critical patches upon release by vendors.
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