TSPY_MALUMPOS.SM
Troj/Malumpos-A (Sophos); Trojan:Win32/Malumpos.A (Microsoft); Trojan-Spy.MalumPOS (Ikarus); W32/MalumPOS.A!tr (Fortinet); Trojan-Spy:W32/MalumPOS.A (F-Secure); Win32:MalumPOS-A [Spy] (Avast)
Windows
Threat Type: Spyware
Destructiveness: No
Encrypted: No
In the wild: Yes
OVERVIEW
This spyware 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
121,344 bytes
EXE
Yes
08 Jun 2015
Arrival Details
This spyware arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
Autostart Technique
This spyware registers itself as a system service to ensure its automatic execution at every system startup by adding the following registry entries:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
services\NVIDIA Display Driv3r
DisplayName = "NVIDIA Display Driv3r"
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
services\NVIDIA Display Driv3r
ImagePath = "{malware path}"
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
services\NVIDIA Display Driv3r
Description = "Provides system and desktop level support to the NVIDIA display driver"
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
services\NVIDIA Display Driv3r
Start = "2"
NOTES:
It encrypts and saves the stolen data in the file nvsvc.dll.
SOLUTION
9.750
11.718.06
08 Jun 2015
11.719.00
09 Jun 2015
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
Delete this registry key
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_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services
- NVIDIA Display Driv3r
- NVIDIA Display Driv3r
Step 4
Search and delete this file
- nvsvc.dll
Step 5
Scan your computer with your Trend Micro product to delete files detected as TSPY_MALUMPOS.SM. 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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