Analysis by: Karl Dominguez
 PLATFORM:

Windows 2000, XP, Server 2003

 OVERALL RISK RATING:
 DAMAGE POTENTIAL:
 DISTRIBUTION POTENTIAL:
 REPORTED INFECTION:

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted: Yes

  • In the wild: Yes

  OVERVIEW

This Trojan may be hosted on a website and run when a user accesses the said website.

This is the Trend Micro detection for Web pages that were compromised through the insertion of a certain malicious script.

  TECHNICAL DETAILS

File Size: Varies
File Type: Script
Memory Resident: Yes
Initial Samples Received Date: 08 Feb 2011

Arrival Details

This Trojan may be hosted on a website and run when a user accesses the said website.

Other Details

This is the Trend Micro detection for Web pages that were compromised through the insertion of a certain malicious script.

It does the following:

  • It connects to any of the following URLs which may be related to advertisements and/or boosting hit counts:
    • {hosting site}/{BLOCKED}oires/wirev/check.js
    • {hosting site}/{BLOCKED}oires/wirev/dummy.htm
    • {hosting site}/{BLOCKED}s/board_files/ebid/check.js
    • {hosting site}/{BLOCKED}s/board_files/ebid/dummy.htm
    • {hosting site}/{BLOCKED}l/inc/zix/check.js
    • {hosting site}/{BLOCKED}l/inc/zix/dummy.htm
    • {hosting site}/{BLOCKED}t/Construction_and_Engineering/Suppliers/ufoq/check.js
    • {hosting site}/{BLOCKED}t/Construction_and_Engineering/Suppliers/ufoq/dummy.htm
    • {hosting site}/{BLOCKED}s/english1000/sliced/_notes/ekuhiyi/check.js
    • {hosting site}/{BLOCKED}s/english1000/sliced/_notes/ekuhiyi/dummy.htm
    • {hosting site}/{BLOCKED}s_biens/ahoxi/check.js
    • {hosting site}/{BLOCKED}s_biens/ahoxi/dummy.htm
    • {hosting site}/{BLOCKED}s/tiny_mce/themes/advanced/skins/momukiq/check.js
    • {hosting site}/{BLOCKED}s/tiny_mce/themes/advanced/skins/momukiq/dummy.htm
    • {hosting site}/{BLOCKED}s/editors/jce/jscripts/tiny_mce/libraries/koq/check.js
    • {hosting site}/{BLOCKED}s/editors/jce/jscripts/tiny_mce/libraries/koq/dummy.htm
    • {hosting site}/{BLOCKED}s/rte/cimav/check.js
    • {hosting site}/{BLOCKED}s/rte/cimav/dummy.htm
    • {hosting site}/{BLOCKED}e/gin/check.js
    • {hosting site}/{BLOCKED}e/gin/dummy.htm
    • {hosting site}/{BLOCKED}lag/software-katalog/bilder/erohak/check.js
    • {hosting site}/{BLOCKED}lag/software-katalog/bilder/erohak/dummy.htm
    • {hosting site}/{BLOCKED}letter/sigobor/check.js
    • {hosting site}/{BLOCKED}letter/sigobor/dummy.htm
    • {hosting site}/{BLOCKED}a/check.js
    • {hosting site}/{BLOCKED}a/dummy.

  SOLUTION

Minimum Scan Engine: 8.900
VSAPI OPR PATTERN File: 7.820.01
VSAPI OPR PATTERN Date: 08 Feb 2011

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

Close all opened browser windows

Step 3

Scan your computer with your Trend Micro product to clean files detected as JS_ADCLICK.SMDE. 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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