TSPY_POCARDL.SM
Infostealer.Reedum (Symantec),TrojanSpy:Win32/Pocardler.A (Microsoft), Trojan-Spy.Win32.POS.d (Kaspersky), a variant of Win32/Spy.POSCardStealer.C trojan (NOD32), Infostealer.Reedum (Norton)
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: Yes
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.
It bypasses the Windows firewall. This allows the malware to perform its intended routine without being detected by an installed firewall.
TECHNICAL DETAILS
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.
Installation
This spyware drops the following copies of itself into the affected system:
- %User Profile%\svhst.exe
(Note: %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.)
Autostart Technique
This spyware adds the following registry entries to enable its automatic execution at every system startup:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Run
videodrv = "%User Profile%\svhst.exe"
Other System Modifications
This spyware modifies the following registry entries to disable the Windows Firewall settings:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Services\SharedAccess\Parameters\
FirewallPolicy\StandardProfile
EnableFirewall = "0"
(Note: The default value data of the said registry entry is "1".)
Information Theft
This spyware gathers the following data:
- User's Directory Name
- Credit/Debit Card Information
Stolen Information
This spyware saves the stolen information in the following file:
- {malware location}\readme.txt
- {malware location}\output.txt
- {malware location}\{hour}.{minutes}.{seconds} {AM/PM}.txt
Drop Points
This spyware uploads files to the following File Transfer Protocol (FTP) sites:
- {BLOCKED}.{BLOCKED}.104.41
- ftp.krokodil.{BLOCKED}i.net
- ftp.c4a.{BLOCKED}b.com
- ftp.sobachka.{BLOCKED}e.com
- {BLOCKED}.{BLOCKED}.159.254
Other Details
This spyware drops the following file(s)/component(s):
- {malware location}\dum.exe - also detected as TSPY_POCARDL.SM
- {malware location}\{process ID}.memdump
NOTES:
This spyware dumps the affected system's memory to check for sensitive information such as credit/debit card account numbers, names, and expiration date stored in the aforementioned system.
User's directory name is stored in readme.txt and the card information are stored in {hour}.{minutes}.{seconds} {AM/PM}.txt, which are then uploaded to an FTP site.
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 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\Run
- videodrv = "%User Profile%\svhst.exe"
- videodrv = "%User Profile%\svhst.exe"
Step 4
Restore this modified 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\SYSTEM\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile
- From: EnableFirewall = "0"
To: EnableFirewall = "1"
- From: EnableFirewall = "0"
Step 5
Search and delete this file
- {malware location}\readme.txt
- {malware location}\output.txt
- {malware location}\{process ID}.memdump
- {malware location}\{hour}.{minutes}.{seconds} {AM/PM}.txt
Step 6
Restart in normal mode and scan your computer with your Trend Micro product for files detected as TSPY_POCARDL.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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