BAT_POWELOAD.A
Windows
Threat Type: Trojan
Destructiveness: No
Encrypted: Yes
In the wild: Yes
OVERVIEW
Dropped by other malware
This Trojan may be dropped by other malware.
It uses Windows Task Scheduler to create a scheduled task that executes the dropped copy.
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
3,030 bytes
BAT
No
18 Aug 2016
Executes files
Arrival Details
This Trojan may be dropped by the following malware:
- TROJ_POWELOAD.A
Installation
This Trojan drops the following files:
- %User Temp%\MSV1144244.bat - detected as BAT_POWELOAD.A
(Note: %User Temp% is the user's temporary folder, where it usually is C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Local\Temp on Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.)
It uses Windows Task Scheduler to create a scheduled task that executes the dropped copy.
Download Routine
This Trojan connects to the following website(s) to download and execute a malicious file:
- https://{blocked}.{blocked}.31.182:443//sdsd/{random value}
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.
Other Details
This Trojan does the following:
- It runs a powershell command to execute its routines.
- It creates a Scheduled Task named "LoadImage1" to automatically execute the dropped file every 15 minutes:
- %System32%\Tasks\LoadImage1
SOLUTION
9.800
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
Step 3
Scan your computer with your Trend Micro product to delete files detected as BAT_POWELOAD.A. 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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