TROJ_JORIK.SMID
Windows 2000, Windows XP, Windows Server 2003
![](/vinfo/imgFiles/legend.jpg)
Threat Type: Trojan
Destructiveness: No
Encrypted: Yes
In the wild: Yes
OVERVIEW
This Trojan arrives as an attachment to email messages spammed by other malware/grayware or malicious users.
It executes then deletes itself afterward.
It executes the downloaded files. As a result, malicious routines of the downloaded files are exhibited on the affected system. As of this writing, the said sites are inaccessible.
TECHNICAL DETAILS
Arrival Details
This Trojan arrives as an attachment to the following email messages spammed by other malware/grayware or malicious users:
Installation
This Trojan executes then deletes itself afterward.
Download Routine
This Trojan connects to the following website(s) to download and execute a malicious file:
- www.{BLOCKED}nd.com/start.exe
- www.{BLOCKED}ns.com/start.exe
It saves the files it downloads using the following names:
- %User Profile%\Application Data\{random numbers}.exe
(Note: %User Profile% is the current user's profile folder, which is usually C:\Documents and Settings\{user name} on Windows 2000, XP, and Server 2003, or C:\Users\{user name} on Windows Vista and 7.)
It then executes the downloaded files. As a result, malicious routines of the downloaded files are exhibited on the affected system.
As of this writing, the said sites are inaccessible.
SOLUTION
Step 1
Before doing any scans, Windows XP, Windows Vista, and Windows 7 users must disable System Restore to allow full scanning of their computers.
Step 2
Search and delete this file
- %User Profile%\Application Data\{random numbers}.exe
Step 3
Scan your computer with your Trend Micro product to delete files detected as TROJ_JORIK.SMID. 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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