TROJ_DROPPER.XXTVR
Windows
Threat Type: Trojan
Destructiveness: No
Encrypted: No
In the wild: Yes
OVERVIEW
Downloaded from the Internet, Dropped by other malware
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 deletes itself after execution.
TECHNICAL DETAILS
1,409,536 bytes
EXE
No
04 Jan 2017
Drops files
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.
Other Details
This Trojan drops the following file(s)/component(s):
- %System%\drivers\npf.dll - Copy of npf.sys (npf.sys is part of WinPcap)
(Note: %System% is the Windows system folder, where it usually is C:\Windows\System32 on all Windows operating system versions.)
It deletes itself after execution.
NOTES:
It installs WinPcap components, a legitimate and commonly used Windows packet capture library, which is used to monitor the infected computer's network activities by dropping and installing the following files:
SOLUTION
9.800
13.136.08
04 Jan 2017
13.137.00
05 Jan 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
Note that not all files, folders, and registry keys and entries are installed on your computer during this malware's/spyware's/grayware's execution. This may be due to incomplete installation or other operating system conditions. If you do not find the same files/folders/registry information, please proceed to the next step.
Step 3
Search and delete these files
- %System%\drivers\npf.dll
Step 4
Scan your computer with your Trend Micro product to delete files detected as TROJ_DROPPER.XXTVR. 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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