TSPY_SEPAR.AG
Trojan:Win32/Skeeyah.A!rfn (Microsoft); Trojan.Gen.2 (Symantec); PSWTool.Win32.MailPassView.vvh (Kaspersky); Trojan.Win32.Generic!BT (Sunbelt); Trojan horse Generic17_c.BXVY (AVG)
Windows
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.
TECHNICAL DETAILS
3,795,440 bytes
EXE
Yes
12 Jun 2017
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:
- %System Root%\Documents and Settings\Wilbert
- %User Profile%\appdata
- %User Profile%\appdata\local
- %User Profile%\local\Adobe
- %User Profile%\Adobe\low
- %User Profile%\Adobe INC\AdobeRead
- %User Profile%\Application Data\Adobe
- %User Profile%\Adobe\Adobe INC
- %User Profile%\Application Data\TEMP
(Note: %System Root% is the Windows root folder, where it usually is C:\ on all Windows operating system versions.. %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
AdobeA = "%User Profile%\AdobeRead\BDD1.bat"
Other System Modifications
This Spyware deletes the following files:
- %User Profile%\AdobeRead\adip2.klc
- %User Profile%\AdobeRead\003_20~1.058
- %User Profile%\AdobeRead\003_20~1.059
(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.)
It adds the following registry keys:
HKEY_CURRENT_USER\Software\Licenses
HKEY_CLASSES_ROOT\CLSID\{71E816AE-B6E7-34BA-0341-332B111F53E6}
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{71E816AE-B6E7-34BA-0341-332B111F53E6}\InprocServer32
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{71E816AE-B6E7-34BA-0341-332B111F53E6}\InprocServer32\
2.0.50727
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{71E816AE-B6E7-34BA-0341-332B111F53E6}\InprocServer32\
4.0.30319
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{71E816AE-B6E7-34BA-0341-332B111F53E6}\NotInsertable
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{71E816AE-B6E7-34BA-0341-332B111F53E6}\ProgID
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{71E816AE-B6E7-34BA-0341-332B111F53E6}\Server
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{71E816AE-B6E7-34BA-0341-332B111F53E6}\VersionIndependentProgID
It adds the following registry entries:
HKEY_CURRENT_USER\Software\Licenses
{K7C0DB872A3F777C0} = "{random values}"
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{71E816AE-B6E7-34BA-0341-332B111F53E6}\InprocServer32
ThreadingModel = "Both"
HKEY_CURRENT_USER\Software\Licenses
{ICAFDB58D0740813E} = "{random values}"
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\SharedAccess\Parameters\
FirewallPolicy\StandardProfile
EnableFirewall = "0"
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\SharedAccess\Parameters\
FirewallPolicy\StandardProfile
DoNotAllowExceptions = "0"
It modifies the following registry entries:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
RFC1156Agent\CurrentVersion\Parameters
TrapPollTimeMilliSecs = "3a98"
(Note: The default value data of the said registry entry is 3a98.)
It deletes the following registry keys:
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{71E816AE-B6E7-34BA-0341-332B111F53E6}\Version
Dropping Routine
This Spyware drops the following files:
- __tmp_rar_sfx_access_check_36343
- 870.afr
- adbr01.exe
- adbr02.exe
- Adob9.vbs
- Adobeta.exe
- AReader.exe
- BDD1.bat
- cdu03.bat
- ert02.bat
- samS002.jpg
- sun.afr
- vlik.vbs
- 012.012
- %User Profile%\TEMP\RAIDTest
- %User Temp%\9F86B0A0.TMP
- 011.011
- 112.112
(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.. %User Temp% is the user's temporary folder, where it usually is C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Local\Temp on Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.)
Other Details
This Spyware connects to the following possibly malicious URL:
- {BLOCKED}.57.8
This report is generated via an automated analysis system.
SOLUTION
9.8
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
- Licenses
- In HKEY_CLASSES_ROOT\CLSID
- {71E816AE-B6E7-34BA-0341-332B111F53E6}
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{71E816AE-B6E7-34BA-0341-332B111F53E6}
- InprocServer32
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{71E816AE-B6E7-34BA-0341-332B111F53E6}\InprocServer32
- 2.0.50727
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{71E816AE-B6E7-34BA-0341-332B111F53E6}\InprocServer32
- 4.0.30319
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{71E816AE-B6E7-34BA-0341-332B111F53E6}
- NotInsertable
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{71E816AE-B6E7-34BA-0341-332B111F53E6}
- ProgID
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{71E816AE-B6E7-34BA-0341-332B111F53E6}
- Server
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{71E816AE-B6E7-34BA-0341-332B111F53E6}
- VersionIndependentProgID
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
- AdobeA = "%User Profile%\AdobeRead\BDD1.bat"
- In HKEY_CURRENT_USER\Software\Licenses
- {K7C0DB872A3F777C0} = "{random values}"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{71E816AE-B6E7-34BA-0341-332B111F53E6}\InprocServer32
- ThreadingModel = "Both"
- In HKEY_CURRENT_USER\Software\Licenses
- {ICAFDB58D0740813E} = "{random values}"
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile
- EnableFirewall = "0"
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile
- DoNotAllowExceptions = "0"
Step 5
Restore these modified registry values
Important:Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this only if you know how to or you can seek your system administrator's help. You may also check out this Microsoft article first before modifying your computer's registry.
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\RFC1156Agent\CurrentVersion\Parameters
- From: TrapPollTimeMilliSecs = "3a98"
To: TrapPollTimeMilliSecs = ""3a98""
- From: TrapPollTimeMilliSecs = "3a98"
Step 6
Search and delete these components
- __tmp_rar_sfx_access_check_36343
- 870.afr
- adbr01.exe
- adbr02.exe
- Adob9.vbs
- Adobeta.exe
- AReader.exe
- BDD1.bat
- cdu03.bat
- ert02.bat
- samS002.jpg
- sun.afr
- vlik.vbs
- 012.012
- %User Profile%\TEMP\RAIDTest
- %User Temp%\9F86B0A0.TMP
- 011.011
- 112.112
Step 7
Search and delete these folders
- %System Root%\Documents and Settings\Wilbert
- %User Profile%\appdata
- %User Profile%\appdata\local
- %User Profile%\local\Adobe
- %User Profile%\Adobe\low
- %User Profile%\Adobe INC\AdobeRead
- %User Profile%\Application Data\Adobe
- %User Profile%\Adobe\Adobe INC
- %User Profile%\Application Data\TEMP
Step 8
Restart in normal mode and scan your computer with your Trend Micro product for files detected as TSPY_SEPAR.AG. 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 9
Restore this file from backup only Microsoft-related files will be restored. If this malware/grayware also deleted files related to programs that are not from Microsoft, please reinstall those programs on you computer again.
- %User Profile%\AdobeRead\adip2.klc
- %User Profile%\AdobeRead\003_20~1.058
- %User Profile%\AdobeRead\003_20~1.059
Step 10
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_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{71E816AE-B6E7-34BA-0341-332B111F53E6}
- Version
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