TSPY_FAREIT.VB
Trojan-PSW.Win32.Tepfer.lqsm (Kaspersky); Trojan.Win32.Winwebsec.mdd (v) (Sunbelt); Found Luhe.MaZec.L (AVG)
Windows 2000, Windows XP, Windows Server 2003
Threat Type: Spyware
Destructiveness: No
Encrypted:
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 deletes itself after execution.
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 creates the following folders:
- %User Profile%\Application Data\Yxen
(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_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
Ixgy = "%User Profile%\Yxen\ixgy.exe"
Other System Modifications
This spyware adds the following registry keys:
HKEY_CURRENT_USER\Software\WinRAR
HKEY_CURRENT_USER\Software\Microsoft\
Xaodfika
It adds the following registry entries:
HKEY_CURRENT_USER\Software\WinRAR
HWID = "{random values}"
HKEY_CURRENT_USER\Software\WinRAR
Client Hash = "{random values}"
HKEY_CURRENT_USER\Software\WinRAR
201B18D75418F8CCA67268425B34BC60 = "{random values}"
HKEY_CURRENT_USER\Software\WinRAR
00F4CD0FB704574CF35E16D01589A182 = "{random values}"
HKEY_CURRENT_USER\Software\Microsoft\
Xaodfika
2ag4ie85 = "0yeOuCeZc1N743oGYAs=?_CHAR(0x06)_?"
HKEY_CURRENT_USER\Software\Microsoft\
Xaodfika
2f84begb = "b8e27aa"
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\SharedAccess\Parameters\
FirewallPolicy\StandardProfile
DisableNotifications = "1"
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\SharedAccess\Parameters\
FirewallPolicy\StandardProfile\GloballyOpenPorts\
List
12590:UDP = "12590:UDP:*:Enabled:UDP 12590"
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\SharedAccess\Parameters\
FirewallPolicy\StandardProfile
DisableNotifications = "0"
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\SharedAccess\Parameters\
FirewallPolicy\StandardProfile\GloballyOpenPorts\
List
17701:TCP = "17701:TCP:*:Enabled:TCP 17701"
HKEY_CURRENT_USER\Software\Microsoft\
Xaodfika
170f6fa7 = "lBbguHbcQlNL4xAG_CHAR(0x05)_re?O?Oed."
HKEY_CURRENT_USER\Software\Microsoft\
Xaodfika
2f84begb = "{random values}"
Dropping Routine
This spyware drops the following files:
- %User Temp%\130031.exe
- %User Temp%\135578.exe
- %User Profile%\Yxen\ixgy.exe
- %Application Data%\guipov.iri
(Note: %User Temp% is the current user's Temp folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000, XP, and Server 2003, or C:\Users\{user name}\AppData\Local\Temp on Windows Vista and 7.. %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.. %Application Data% is the current user's Application Data folder, which is usually C:\Documents and Settings\{user name}\Application Data on Windows 2000, XP, and Server 2003, or C:\Users\{user name}\AppData\Roaming on Windows Vista and 7.)
Other Details
This spyware deletes itself after execution.
This report is generated via an automated analysis system.
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.
- In HKEY_CURRENT_USER\Software
- WinRAR
- In HKEY_CURRENT_USER\Software\Microsoft
- Xaodfika
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\Run
- Ixgy = "%User Profile%\Yxen\ixgy.exe"
- In HKEY_CURRENT_USER\Software\WinRAR
- HWID = "{random values}"
- In HKEY_CURRENT_USER\Software\WinRAR
- Client Hash = "{random values}"
- In HKEY_CURRENT_USER\Software\WinRAR
- 201B18D75418F8CCA67268425B34BC60 = "{random values}"
- In HKEY_CURRENT_USER\Software\WinRAR
- 00F4CD0FB704574CF35E16D01589A182 = "{random values}"
- In HKEY_CURRENT_USER\Software\Microsoft\Xaodfika
- 2ag4ie85 = "0yeOuCeZc1N743oGYAs=?_CHAR(0x06)_?"
- In HKEY_CURRENT_USER\Software\Microsoft\Xaodfika
- 2f84begb = "b8e27aa"
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile
- DisableNotifications = "1"
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\GloballyOpenPorts\List
- 12590:UDP = "12590:UDP:*:Enabled:UDP 12590"
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile
- DisableNotifications = "0"
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\GloballyOpenPorts\List
- 17701:TCP = "17701:TCP:*:Enabled:TCP 17701"
- In HKEY_CURRENT_USER\Software\Microsoft\Xaodfika
- 170f6fa7 = "lBbguHbcQlNL4xAG_CHAR(0x05)_re?O?Oed."
- In HKEY_CURRENT_USER\Software\Microsoft\Xaodfika
- 2f84begb = "{random values}"
Step 5
Search and delete these components
- %User Temp%\130031.exe
- %User Temp%\135578.exe
- %User Profile%\Yxen\ixgy.exe
- %Application Data%\guipov.iri
Step 6
Search and delete this folder
- %User Profile%\Application Data\Yxen
Step 7
Restart in normal mode and scan your computer with your Trend Micro product for files detected as TSPY_FAREIT.VB. 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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