JS_OBFUSCA.SM
Windows 2000, XP, Server 2003
Threat Type: Trojan
Destructiveness: No
Encrypted: No
In the wild: Yes
OVERVIEW
This Trojan may arrive bundled with malware packages as a malware component. It executes when a user accesses certain websites where it is hosted. It may be hosted on a website and run when a user accesses the said website.
TECHNICAL DETAILS
Varies
Script
No
17 Oct 2010
Arrival Details
This Trojan may arrive bundled with malware packages as a malware component.
It executes when a user accesses certain websites where it is hosted.
It may be hosted on a website and run when a user accesses the said website.
It may be downloaded from the following remote site(s):
- {BLOCKED}f.com
Other Details
This Trojan requires the following additional components to properly run:
- JS_OBFUSCA.SMB
It does the following:
- Is a part of Web ToolKit used to encode/decode data using base64. This malware is being used in web sites hosting FAKEAV malware
SOLUTION
8.900
7.551.00
19 Oct 2010
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
Remove malware files dropped/downloaded by JS_OBFUSCA.SM
- JS_OBFUSCA.SMB
Step 3
Close all opened browser windows
Step 4
Scan your computer with your Trend Micro product to delete files detected as JS_OBFUSCA.SM. 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.
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