JS_REDIR.ENC
Windows 2000, XP, Server 2003
Threat Type: Trojan
Destructiveness: No
Encrypted: No
In the wild: Yes
OVERVIEW
This Trojan may be unknowingly downloaded by a user while visiting malicious websites. However, as of this writing, the said sites are inaccessible.
TECHNICAL DETAILS
Arrival Details
This Trojan may be unknowingly downloaded by a user while visiting malicious websites.
However, as of this writing, the said sites are inaccessible.
Download Routine
This Trojan accesses the following websites to download files:
- http://{BLOCKED}esuploadesonline.net/Proxyscanner/load.php?spl=iepeers&b=ie&o=xp&i=iepeers&cp=0
It takes advantage of the following software vulnerabilities to download possibly malicious files:
Other Details
This Trojan does the following:
- It saves the downloaded file as %Temp%\wJQs.exe.
(Note: %Temp% is the Windows Temporary folder, which is usually C:\Windows\Temp or C:\WINNT\Temp.)
SOLUTION
Step 1
For Windows XP and Windows Server 2003 users, before doing any scans, please make sure you disable System Restore to allow full scanning of your computer.
Step 2
Scan your computer with your Trend Micro product to delete files detected as JS_REDIR.ENC. 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.
Step 3
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. http://www.microsoft.com/technet/security/advisory/981374.mspx
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