TROJ_SWATIY.AA
HEUR:Trojan.Win32.Generic (Kaspersky); Trojan.Win32.Generic!BT (Sunbelt); Trojan horse Pakes3_c.OWL (AVG)
Windows

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
2,294,784 bytes
EXE
No
08 May 2017
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 System Modifications
This Trojan adds the following registry keys:
HKEY_CURRENT_USER\Software\NVIDIA Corporation
HKEY_CURRENT_USER\Software\NVIDIA Corporation\
Swak
HKEY_CURRENT_USER\Software\NVIDIA Corporation\
Swak\Recent File List
HKEY_CURRENT_USER\Software\NVIDIA Corporation\
Swak\Settings
HKEY_CURRENT_USER\Software\NVIDIA Corporation\
Swak\Parameters
HKEY_LOCAL_MACHINE\Software\Microsoft\
Windows\CurrentVersion\MCD
It adds the following registry entries:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\MCD
Enable = "1"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\MCD
SwapSync = "1"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\MCD
Palettized Formats = "1"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\MCD
IO Priority = "0"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\MCD
Use Generic Stencil = "1"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\MCD
Enumerate as ICD = "0"
Dropping Routine
This Trojan drops the following files:
- %User Temp%\Swa1.tmp
- %User Profile%\My Documents\ExternSwak.swk
(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.. %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
9.8
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
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_CURRENT_USER\Software
- NVIDIA Corporation
- In HKEY_CURRENT_USER\Software\NVIDIA Corporation
- Swak
- In HKEY_CURRENT_USER\Software\NVIDIA Corporation\Swak
- Recent File List
- In HKEY_CURRENT_USER\Software\NVIDIA Corporation\Swak
- Settings
- In HKEY_CURRENT_USER\Software\NVIDIA Corporation\Swak
- Parameters
- In HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion
- MCD
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_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\MCD
- Enable = "1"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\MCD
- SwapSync = "1"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\MCD
- Palettized Formats = "1"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\MCD
- IO Priority = "0"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\MCD
- Use Generic Stencil = "1"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\MCD
- Enumerate as ICD = "0"
Step 4
Search and delete these components
- %User Temp%\Swa1.tmp
- %User Profile%\My Documents\ExternSwak.swk
Step 5
Scan your computer with your Trend Micro product to delete files detected as TROJ_SWATIY.AA. 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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