TROJ_ARCHSMS.B
Windows 2000, Windows XP, Windows Server 2003
Threat Type: Trojan
Destructiveness: No
Encrypted: No
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.
It creates folders where it drops its files.
TECHNICAL DETAILS
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.
It creates the following folders:
- %User Temp%\roXCJ
(Note: %User Temp% is the current user's Temp folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000, XP, and Server 2003, or C:\Users\{user name}\AppData\Local\Temp on Windows Vista and 7.)
NOTES:
It disguises as Windows 8 Activator. It displays the following screenshots to trick users into thinking that the file being run is a legitimate installer of the said application:
Once it reaches the last screen, it asks the user to enter a password. It displays the following message in every attempt:
It terminates after 3 attempts.
It connects to the following websites upon execution to generate clicks for the said sites:
- http://{BLOCKED}rchant.net/api/open.php?aid=2102499&v
- http://{BLOCKED}rchant.net/50qjpr21e2bd/2102499/
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
Search and delete these folders
- %User Temp%\roXCJ
Step 3
Scan your computer with your Trend Micro product to delete files detected as TROJ_ARCHSMS.B. 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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