TROJ_PAM_0000020528.T3
Adware:Win32/ArcadeWeb (Microsoft); GameVance.gen.n. (McAfee); GameVance (fs) (Sunbelt); Gen:Variant.Adware.Buzy.4401 (FSecure)
Windows 2000, Windows XP, Windows Server 2003
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
182,272 bytes
EXE
Yes
20 Jul 2012
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.
Autostart Technique
This Trojan adds the following registry entries to enable its automatic execution at every system startup:
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\RunOnce
PS registry removal = "cmd.exe /c reg delete HKCU\SOFTWARE\PlaySushi /f"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\RunOnce
PS registry removal 2 = "cmd.exe /c reg delete HKCU\SOFTWARE\AppDataLow\PlaySushi /f"
Other System Modifications
This Trojan deletes the following folders:
- %Program Files%\Playsushi
- %User Profile%\sys\#content.playsushi.com
- %User Profile%\{ec8030f7-c20a-464f-9b0e-13a3a9e97384}\textlinks@playsushi.com
It adds the following registry keys:
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\RunOnce
It deletes the following registry keys:
HKEY_CURRENT_USER\Software\AppDataLow\
PlaySushi
HKEY_CLASSES_ROOT\AppID\PlaySushi32.DLL
HKEY_CLASSES_ROOT\AppID\{E89A07B5-BD7A-43F9-BDA4-0DAA48AC4FA5}
HKEY_CLASSES_ROOT\CLSID\{21608B66-026F-4DCB-9244-0DACA328DCED}\
ProgID
HKEY_CLASSES_ROOT\CLSID\{21608B66-026F-4DCB-9244-0DACA328DCED}\
InprocServer32
HKEY_CLASSES_ROOT\CLSID\{21608B66-026F-4DCB-9244-0DACA328DCED}\
Implemented Categories
HKEY_CLASSES_ROOT\CLSID\{21608B66-026F-4DCB-9244-0DACA328DCED}
HKEY_CLASSES_ROOT\CLSID\{D6F7A625-9F14-4FC6-A228-F00E674596D3}
HKEY_CLASSES_ROOT\PlaySushi32.Helper
HKEY_CLASSES_ROOT\PlaySushi32.Helper.1
HKEY_CLASSES_ROOT\PlaySushi32.PlaySushi
HKEY_CLASSES_ROOT\PlaySushi32.PlaySushi.1
HKEY_CLASSES_ROOT\TypeLib\{975BBCC0-19DF-47C2-9AE2-D78EEFA96821}
HKEY_CLASSES_ROOT\PSText.IEButton.1\CLSID
HKEY_CLASSES_ROOT\PSText.IEButton.1
HKEY_CLASSES_ROOT\PSText.IEButton\CLSID
HKEY_CLASSES_ROOT\PSText.IEButton\CurVer
HKEY_CLASSES_ROOT\PSText.IEButton
HKEY_CLASSES_ROOT\CLSID\{EBD24BD3-E272-4FA3-A8BA-C5D709757CAB}\
ProgID
HKEY_CLASSES_ROOT\CLSID\{EBD24BD3-E272-4FA3-A8BA-C5D709757CAB}\
InprocServer32
HKEY_CLASSES_ROOT\CLSID\{EBD24BD3-E272-4FA3-A8BA-C5D709757CAB}\
Implemented Categories
HKEY_CLASSES_ROOT\CLSID\{EBD24BD3-E272-4FA3-A8BA-C5D709757CAB}\
Programmable
HKEY_CLASSES_ROOT\CLSID\{EBD24BD3-E272-4FA3-A8BA-C5D709757CAB}\
TypeLib
HKEY_CLASSES_ROOT\CLSID\{EBD24BD3-E272-4FA3-A8BA-C5D709757CAB}\
VersionIndependentProgID
HKEY_CLASSES_ROOT\CLSID\{EBD24BD3-E272-4FA3-A8BA-C5D709757CAB}
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
AppID\{E89A07B5-BD7A-43F9-BDA4-0DAA48AC4FA5}
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{21608B66-026F-4DCB-9244-0DACA328DCED}
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{21608B66-026F-4DCB-9244-0DACA328DCED}\InprocServer32
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{21608B66-026F-4DCB-9244-0DACA328DCED}\ProgID
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{21608B66-026F-4DCB-9244-0DACA328DCED}\Implemented Categories
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{D6F7A625-9F14-4FC6-A228-F00E674596D3}
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
PlaySushi32.Helper
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
PlaySushi32.Helper.1
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
PlaySushi32.PlaySushi
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
PlaySushi32.PlaySushi.1
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{975BBCC0-19DF-47C2-9AE2-D78EEFA96821}
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Explorer\
Browser Helper Objects\{21608B66-026F-4DCB-9244-0DACA328DCED}
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Internet Explorer\Extensions\{EBD24BD3-E272-4FA3-A8BA-C5D709757CAB}
HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\
Microsoft\Internet Explorer\Extensions\
{EBD24BD3-E272-4FA3-A8BA-C5D709757CAB}
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
PlaySushi
This report is generated via an automated analysis system.
SOLUTION
9.200
Step 1
For Windows XP and Windows Server 2003 users, before doing any scans, please make sure you disable System Restore to allow full scanning of your computer.
Step 2
Restart in Safe Mode
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_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion
- RunOnce
Step 4
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_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce
- PS registry removal = "cmd.exe /c reg delete HKCU\SOFTWARE\PlaySushi /f"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce
- PS registry removal 2 = "cmd.exe /c reg delete HKCU\SOFTWARE\AppDataLow\PlaySushi /f"
Step 5
Restart in normal mode and scan your computer with your Trend Micro product for files detected as TROJ_PAM_0000020528.T3. 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.
Step 6
Restore these deleted registry keys/values from backup
*Note: Only Microsoft-related keys/values will be restored. If the malware/grayware also deleted registry keys/values related to programs that are not from Microsoft, please reinstall those programs on your computer.
- In HKEY_CURRENT_USER\Software\AppDataLow
- PlaySushi
- In HKEY_CLASSES_ROOT\AppID
- PlaySushi32.DLL
- In HKEY_CLASSES_ROOT\AppID
- {E89A07B5-BD7A-43F9-BDA4-0DAA48AC4FA5}
- In HKEY_CLASSES_ROOT\CLSID\{21608B66-026F-4DCB-9244-0DACA328DCED}
- ProgID
- In HKEY_CLASSES_ROOT\CLSID\{21608B66-026F-4DCB-9244-0DACA328DCED}
- InprocServer32
- In HKEY_CLASSES_ROOT\CLSID\{21608B66-026F-4DCB-9244-0DACA328DCED}
- Implemented Categories
- In HKEY_CLASSES_ROOT\CLSID
- {21608B66-026F-4DCB-9244-0DACA328DCED}
- In HKEY_CLASSES_ROOT\CLSID
- {D6F7A625-9F14-4FC6-A228-F00E674596D3}
- In HKEY_CLASSES_ROOT
- PlaySushi32.Helper
- In HKEY_CLASSES_ROOT
- PlaySushi32.Helper.1
- In HKEY_CLASSES_ROOT
- PlaySushi32.PlaySushi
- In HKEY_CLASSES_ROOT
- PlaySushi32.PlaySushi.1
- In HKEY_CLASSES_ROOT\TypeLib
- {975BBCC0-19DF-47C2-9AE2-D78EEFA96821}
- In HKEY_CLASSES_ROOT\PSText.IEButton.1
- CLSID
- In HKEY_CLASSES_ROOT
- PSText.IEButton.1
- In HKEY_CLASSES_ROOT\PSText.IEButton
- CLSID
- In HKEY_CLASSES_ROOT\PSText.IEButton
- CurVer
- In HKEY_CLASSES_ROOT
- PSText.IEButton
- In HKEY_CLASSES_ROOT\CLSID\{EBD24BD3-E272-4FA3-A8BA-C5D709757CAB}
- ProgID
- In HKEY_CLASSES_ROOT\CLSID\{EBD24BD3-E272-4FA3-A8BA-C5D709757CAB}
- InprocServer32
- In HKEY_CLASSES_ROOT\CLSID\{EBD24BD3-E272-4FA3-A8BA-C5D709757CAB}
- Implemented Categories
- In HKEY_CLASSES_ROOT\CLSID\{EBD24BD3-E272-4FA3-A8BA-C5D709757CAB}
- Programmable
- In HKEY_CLASSES_ROOT\CLSID\{EBD24BD3-E272-4FA3-A8BA-C5D709757CAB}
- TypeLib
- In HKEY_CLASSES_ROOT\CLSID\{EBD24BD3-E272-4FA3-A8BA-C5D709757CAB}
- VersionIndependentProgID
- In HKEY_CLASSES_ROOT\CLSID
- {EBD24BD3-E272-4FA3-A8BA-C5D709757CAB}
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\AppID
- {E89A07B5-BD7A-43F9-BDA4-0DAA48AC4FA5}
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID
- {21608B66-026F-4DCB-9244-0DACA328DCED}
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{21608B66-026F-4DCB-9244-0DACA328DCED}
- InprocServer32
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{21608B66-026F-4DCB-9244-0DACA328DCED}
- ProgID
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{21608B66-026F-4DCB-9244-0DACA328DCED}
- Implemented Categories
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID
- {D6F7A625-9F14-4FC6-A228-F00E674596D3}
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes
- PlaySushi32.Helper
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes
- PlaySushi32.Helper.1
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes
- PlaySushi32.PlaySushi
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes
- PlaySushi32.PlaySushi.1
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib
- {975BBCC0-19DF-47C2-9AE2-D78EEFA96821}
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects
- {21608B66-026F-4DCB-9244-0DACA328DCED}
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\Extensions
- {EBD24BD3-E272-4FA3-A8BA-C5D709757CAB}
- In HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Extensions
- {EBD24BD3-E272-4FA3-A8BA-C5D709757CAB}
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall
- PlaySushi
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