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This backdoor may be dropped by other malware.
It connects to a website to send and receive information.
It creates an event.
This backdoor may be dropped by the following malware:
This backdoor adds the following processes:
This backdoor adds the following registry entries to enable its automatic execution at every system startup:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run tpbar = "%System%S\tpframe.exe"
Other System Modifications
This backdoor adds the following registry keys:
HKEY_CURRENT_USER\Software\Local AppWizard-Generated Applications
This backdoor connects to the following websites to send and receive information:
This backdoor terminates the following processes if found running in the affected system's memory:
This backdoor creates the following event(s):
It drops and executes the following component:
(Note: %System% is the Windows system folder, which is usually C:\WINNT\System32 on Windows NT and 2000, or C:\Windows\System32 on Windows XP and Server 2003.)
It deletes the said file after executing it.
It gathers and sends the following system information to its C&C server to report successful infection:
These information are sent in encrypted format.
It is capable of executing the following commands:
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.
Remove the malware/grayware file that dropped/downloaded BKDR_SASFIS.EVL
Remove malware files dropped/downloaded by BKDR_SASFIS.EVL
Restart in Safe Mode
To restart in Safe Mode:
• For Windows 2000 users
• For Windows XP users
• For Windows Server 2003 users
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.
To delete registry keys this malware/grayware created:
Delete this registry value
To delete the registry value this malware created:
Restart in normal mode and scan your computer with your Trend Micro product for files detected as BKDR_SASFIS.EVL. 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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