TROJ_SHUTDOWN.MJ
Trojan:Win32/LockScreen.AR, Trojan:Win32/LockScreen.AR (Microsoft); Ransom-AA (McAfee); Trojan.Gen (Symantec); Trojan-Ransom.Win32.HmBlocker.beo (Kaspersky); Trojan.Win32.Generic!BT (Sunbelt); Trojan horse Generic20.CDQS, Trojan horse Generic20.CDQS.dropper (AVG)
Windows 2000, Windows XP, Windows Server 2003
![](/vinfo/imgFiles/legend.jpg)
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
48,640 bytes
EXE
Yes
02 Jun 2013
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.
Installation
This Trojan creates the following folders:
- %User Profile%\1290627266
(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.)
Autostart Technique
This Trojan adds the following registry entries to enable its automatic execution at every system startup:
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
I000YFG2Bqsa129062726621212906272661290627266 = "%User Profile%\1290627266\1290627266.EXE"
Dropping Routine
This Trojan drops the following files:
- %User Profile%\1290627266\1290627266.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.)
This report is generated via an automated analysis system.
SOLUTION
9.300
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
Restart in Safe Mode
Step 3
Delete this registry value
Important: Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this step only if you know how or you can ask assistance from your system administrator. Else, check this Microsoft article first before modifying your computer's registry.
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- I000YFG2Bqsa129062726621212906272661290627266 = "%User Profile%\1290627266\1290627266.EXE"
Step 4
Search and delete this file
- %User Profile%\1290627266\1290627266.EXE
Step 5
Search and delete this folder
- %User Profile%\1290627266
Step 6
Restart in normal mode and scan your computer with your Trend Micro product for files detected as TROJ_SHUTDOWN.MJ. 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.
Did this description help? Tell us how we did.