TROJ_ADLOAD.YG
Windows 2000, Windows XP, Windows Server 2003
Threat Type: Trojan
Destructiveness: No
Encrypted:
In the wild: Yes
OVERVIEW
This Trojan arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
TECHNICAL DETAILS
22,043,642 bytes
EXE
Yes
27 Aug 2011
Arrival Details
This Trojan arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
Dropping Routine
This Trojan drops the following files:
- %Current%\{malware file name}.ini
- %Program Files%\Common Files\System\Ole DB\msadotb.htm
(Note: %Program Files% is the default Program Files folder, usually C:\Program Files.)
Other Details
This Trojan connects to the following possibly malicious URL:
- http://a.{BLOCKED}a.cn/inf.js
- http://a.{BLOCKED}a.cn/inf/main.js?t=20110801.js
- http://a.{BLOCKED}a.cn/inf/type/g.js
- http://a.{BLOCKED}a.cn/infrouter.js
- http://a.{BLOCKED}a.cn/js/ac.js
- http://a.{BLOCKED}a.cn/js/sc.js
- http://a.{BLOCKED}a.cn/sync_type_i.js
- http://z.{BLOCKED}a.com/ bk_inf.js
SOLUTION
8.900
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
Identify and terminate files detected as TROJ_ADLOAD.YG
- If the detected file is displayed in either Windows Task Manager or Process Explorer but you cannot delete it, restart your computer in safe mode. To do this, refer to this link for the complete steps.
- If the detected file is not displayed in either Windows Task Manager or Process Explorer, continue doing the next steps.
Step 3
Search and delete these files
- %Current%\{malware file name}.ini
- Program Files%\Common Files\System\Ole DB\msadotb.htm
Step 4
Scan your computer with your Trend Micro product to delete files detected as TROJ_ADLOAD.YG. 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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