TROJ_INJECT.UT
Trojan Horse (Symantec); Trojan.Win32.Generic!BT (Sunbelt); Gen:Variant.Graftor.Elzob.783 (FSecure)
Windows 2000, Windows XP, Windows Server 2003
Threat Type: Trojan
Destructiveness: No
Encrypted:
In the wild: Yes
OVERVIEW
This Trojan arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
It modifies files, disabling programs and applications from properly running.
TECHNICAL DETAILS
Arrival Details
This Trojan 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 Trojan creates the following folders:
- %System Root%\ProgramData\Microsoft
- %System Root%\ProgramData\Microsoft\Windows
- D:\RECYCLER
- %System Root%\RECYCLER
(Note: %System Root% is the root folder, which is usually C:\. It is also where the operating system is located.)
Autostart Technique
This Trojan 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\SessionSysapp
HKEY_LOCAL_MACHINE\SysTEM\cURrentcontrolsEt\
sErvices\SysSvc
HKEY_LOCAL_MACHINE\SysTEM\cURrentcontrolsEt\
sErvices\SystemServices
HKEY_LOCAL_MACHINE\SysTEM\cURrentcontrolsEt\
sErvices\SystemUpdate
HKEY_LOCAL_MACHINE\SysTEM\cURrentcontrolsEt\
sErvices\W32Service
HKEY_LOCAL_MACHINE\SysTEM\cURrentcontrolsEt\
sErvices\W32Log0n
Other System Modifications
This Trojan modifies the following files:
- %User Profile%\Application Data\Microsoft
(Note: %User Profile% is the current user's profile folder, which is usually C:\Windows\Profiles\{user name} on Windows 98 and ME, C:\WINNT\Profiles\{user name} on Windows NT, and C:\Documents and Settings\{user name} on Windows 2000, XP, and Server 2003.)
It deletes the following files:
- %System Root%\RECYCLER\game.xls
- %System Root%\ProgramData\Microsoft\Windows\Sessionmzz.dll
- %System Root%\ProgramData\Microsoft\Windows\Wmikje.dll
- %System Root%\ProgramData\Microsoft\Windows\UDPsyc.dll
- %System Root%\ProgramData\Microsoft\Windows\DHCPpef.dll
- %System Root%\ProgramData\Microsoft\Windows\Netxxg.dll
- %System Root%\ProgramData\Microsoft\Windows\Servicecry.dll
- %System Root%\ProgramData\Microsoft\Windows\NetCC427.ini
- jpg
- txt
- %Windows%\SoftwareDistribution\DataStore\Logs\edbtmp.log
(Note: %System Root% is the root folder, which is usually C:\. It is also where the operating system is located.. %Windows% is the Windows folder, which is usually C:\Windows or C:\WINNT.)
It adds the following registry keys:
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\SessionSysapp\Parameter
HKEY_LOCAL_MACHINE\SOFTWARE\Security\
Svc
HKEY_LOCAL_MACHINE\SOFTWARE\Security\
Svc\Path
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\SysSvc\Parameter
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\SystemServices\Parameter
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\SystemUpdate\Parameter
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\W32Service\Parameter
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\W32Log0n\Parameter
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\WinLog0n\Parameter
HKEY_LOCAL_MACHINE\SOFTWARE\Security\
Cmd
It adds the following registry entries:
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\SessionSysapp
DisplayName = "SessionSysapp"
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\SessionSysapp
Type = "2"
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\SessionSysapp
Start = "2"
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\SessionSysapp
ErrorControl = "0"
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\SessionSysapp
ImagePath = "%SystemRoot%\system32\svchost.exe -k netsvcs"
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\SessionSysapp
ObjectName = "LocalSystem"
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\SessionSysapp
Description = "{random characters}"
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\SessionSysapp\Parameter
ServiceDll = "%System Root%\ProgramData\Microsoft\Windows\Sessionmzz.dll"
HKEY_LOCAL_MACHINE\SOFTWARE\Security\
Svc
SessionSysapp = "idle"
HKEY_LOCAL_MACHINE\SOFTWARE\Security\
Svc\Path
SessionSysapp = "%System Root%\ProgramData\Microsoft\Windows\Sessionmzz.dll"
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\SysSvc
DisplayName = "SysSvc"
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\SysSvc
Type = "2"
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\SysSvc
Start = "2"
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\SysSvc
ErrorControl = "0"
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\SysSvc
ImagePath = "%SystemRoot%\system32\svchost.exe -k netsvcs"
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\SysSvc
ObjectName = "LocalSystem"
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\SysSvc
Description = "Creates a network connections."
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\SysSvc\Parameter
ServiceDll = "%System Root%\ProgramData\Microsoft\Windows\Wmikje.dll"
HKEY_LOCAL_MACHINE\SOFTWARE\Security\
Svc
SysSvc = "idle"
HKEY_LOCAL_MACHINE\SOFTWARE\Security\
Svc\Path
SysSvc = "%System Root%\ProgramData\Microsoft\Windows\Wmikje.dll"
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\SystemServices
DisplayName = "SystemServices"
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\SystemServices
Type = "2"
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\SystemServices
Start = "2"
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\SystemServices
ErrorControl = "0"
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\SystemServices
ImagePath = "%SystemRoot%\system32\svchost.exe -k netsvcs"
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\SystemServices
ObjectName = "LocalSystem"
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\SystemServices
Description = "{random characters}"
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\SystemServices\Parameter
ServiceDll = "%System Root%\ProgramData\Microsoft\Windows\UDPsyc.dll"
HKEY_LOCAL_MACHINE\SOFTWARE\Security\
Svc
SystemServices = "idle"
HKEY_LOCAL_MACHINE\SOFTWARE\Security\
Svc\Path
SystemServices = "%System Root%\ProgramData\Microsoft\Windows\UDPsyc.dll"
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\SystemUpdate
DisplayName = "SystemUpdate"
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\SystemUpdate
Type = "2"
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\SystemUpdate
Start = "2"
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\SystemUpdate
ErrorControl = "0"
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\SystemUpdate
ImagePath = "%SystemRoot%\system32\svchost.exe -k netsvcs"
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\SystemUpdate
ObjectName = "LocalSystem"
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\SystemUpdate
Description = "Manage the RPC name service database."
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\SystemUpdate\Parameter
ServiceDll = "%System Root%\ProgramData\Microsoft\Windows\DHCPpef.dll"
HKEY_LOCAL_MACHINE\SOFTWARE\Security\
Svc
SystemUpdate = "idle"
HKEY_LOCAL_MACHINE\SOFTWARE\Security\
Svc\Path
SystemUpdate = "%System Root%\ProgramData\Microsoft\Windows\DHCPpef.dll"
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\W32Service
DisplayName = "W32Service"
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\W32Service
Type = "2"
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\W32Service
Start = "2"
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\W32Service
ErrorControl = "0"
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\W32Service
ImagePath = "%SystemRoot%\system32\svchost.exe -k netsvcs"
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\W32Service
ObjectName = "LocalSystem"
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\W32Service
Description = "Provide software installation services such as Assign, Publish, and Remove."
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\W32Service\Parameter
ServiceDll = "%System Root%\ProgramData\Microsoft\Windows\Netxxg.dll"
HKEY_LOCAL_MACHINE\SOFTWARE\Security\
Svc
W32Service = "idle"
HKEY_LOCAL_MACHINE\SOFTWARE\Security\
Svc\Path
W32Service = "%System Root%\ProgramData\Microsoft\Windows\Netxxg.dll"
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\W32Log0n
DisplayName = "W32Log0n"
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\W32Log0n
Type = "2"
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\W32Log0n
Start = "2"
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\W32Log0n
ErrorControl = "0"
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\W32Log0n
ImagePath = "%SystemRoot%\system32\svchost.exe -k netsvcs"
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\W32Log0n
ObjectName = "LocalSystem"
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\W32Log0n
Description = "{random characters}"
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\W32Log0n\Parameter
ServiceDll = "%System Root%\ProgramData\Microsoft\Windows\Servicecry.dll"
HKEY_LOCAL_MACHINE\SOFTWARE\Security\
Svc
W32Log0n = "idle"
HKEY_LOCAL_MACHINE\SOFTWARE\Security\
Svc\Path
W32Log0n = "%System Root%\ProgramData\Microsoft\Windows\Servicecry.dll"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows NT\CurrentVersion\uybut
netsvcs = "{random characters}"
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\WinLog0n
DisplayName = "WinLog0n"
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\WinLog0n
Type = "2"
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\WinLog0n
Start = "2"
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\WinLog0n
ErrorControl = "0"
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\WinLog0n
ImagePath = "%SystemRoot%\system32\svchost.exe -k netsvcs"
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\WinLog0n
ObjectName = "LocalSystem"
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\WinLog0n
Description = "{random characters}"
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\WinLog0n\Parameter
ServiceDll = "%System Root%\ProgramData\Microsoft\Windows\NetBin373.dll"
HKEY_LOCAL_MACHINE\SOFTWARE\Security\
Svc
WinLog0n = "header"
HKEY_LOCAL_MACHINE\SOFTWARE\Security\
Svc\Path
WinLog0n = "%System Root%\ProgramData\Microsoft\Windows\NetBin373.dll"
HKEY_LOCAL_MACHINE\SOFTWARE\Security\
Cmd
Verdec = "MailSelfSend3"
It modifies the following registry entries:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows NT\CurrentVersion\SvcHost
netsvcs = "{random characters}"
(Note: The default value data of the said registry entry is {random values}.)
Dropping Routine
This Trojan drops the following files:
- %User Temp%\f87f9693181907a56f607e88cdb4f9c7.zip
- %System Root%\ProgramData\Microsoft\Windows\NetBin373.dll
- %User Temp%\e6c12490118ead39d64741b76e024397.zip
- D:\RECYCLER\1.swf
- %System Root%\e904f9ac10b4aef3211008d3a4b978cc69c9c6d3_f87f9693181907a56f6exe.com).xls
- %User Profile%\Microsoft\Crypto
- %User Profile%\Crypto\RSA
- %User Profile%\RSA\S-1-5-18
- %System Root%\ProgramData\Microsoft\Windows\NetCC467.html
- %System Root%\ProgramData\Microsoft\Windows\NetCC8.html
- %System Root%\ProgramData\Microsoft\Windows\NetCC458.html
- %System Root%\ProgramData\Microsoft\Windows\NetCC356.html
- %System Root%\ProgramData\Microsoft\Windows\NetCC293.html
- %System Root%\ProgramData\Microsoft\Windows\NetCC407.html
- %System Root%\ProgramData\Microsoft\Windows\NetCC245.html
- %System Root%\ProgramData\Microsoft\Windows\NetCC118.html
- %System Root%\ProgramData\Microsoft\Windows\NetCC47.html
- %System Root%\ProgramData\Microsoft\Windows\NetCC39.html
- \notepad.exe
Other Details
This Trojan connects to the following possibly malicious URL:
- http://{BLOCKED}u.com/gqpgemcuwd
- http://{BLOCKED}u.com/iwaxsxg
- http://{BLOCKED}u.com/ocoijxnwkg
- http://{BLOCKED}u.com/bwhrpbe
- http://{BLOCKED}u.com/heiwqiu
- http://{BLOCKED}e.com/gqpgemcuwd
- http://{BLOCKED}e.com/iwaxsxg
- http://{BLOCKED}e.com/ocoijxnwkg
- http://{BLOCKED}e.com/bwhrpbe
- http://{BLOCKED}e.com/heiwqiu
This report is generated via an automated analysis system.
SOLUTION
Step 1
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.
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_LOCAL_MACHINE\SysTEM\cURrentcontrolsEt\sErvices
- SessionSysapp
- In HKEY_LOCAL_MACHINE\SysTEM\cURrentcontrolsEt\sErvices
- SysSvc
- In HKEY_LOCAL_MACHINE\SysTEM\cURrentcontrolsEt\sErvices
- SystemServices
- In HKEY_LOCAL_MACHINE\SysTEM\cURrentcontrolsEt\sErvices
- SystemUpdate
- In HKEY_LOCAL_MACHINE\SysTEM\cURrentcontrolsEt\sErvices
- W32Service
- In HKEY_LOCAL_MACHINE\SysTEM\cURrentcontrolsEt\sErvices
- W32Log0n
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\SessionSysapp
- Parameter
- In HKEY_LOCAL_MACHINE\SOFTWARE\Security
- Svc
- In HKEY_LOCAL_MACHINE\SOFTWARE\Security\Svc
- Path
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\SysSvc
- Parameter
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\SystemServices
- Parameter
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\SystemUpdate
- Parameter
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\W32Service
- Parameter
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\W32Log0n
- Parameter
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\WinLog0n
- Parameter
- In HKEY_LOCAL_MACHINE\SOFTWARE\Security
- Cmd
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_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\SessionSysapp
- DisplayName = "SessionSysapp"
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\SessionSysapp
- Type = "2"
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\SessionSysapp
- Start = "2"
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\SessionSysapp
- ErrorControl = "0"
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\SessionSysapp
- ImagePath = "%SystemRoot%\system32\svchost.exe -k netsvcs"
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\SessionSysapp
- ObjectName = "LocalSystem"
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\SessionSysapp
- Description = "{random characters}"
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\SessionSysapp\Parameter
- ServiceDll = "%System Root%\ProgramData\Microsoft\Windows\Sessionmzz.dll"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Security\Svc
- SessionSysapp = "idle"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Security\Svc\Path
- SessionSysapp = "%System Root%\ProgramData\Microsoft\Windows\Sessionmzz.dll"
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\SysSvc
- DisplayName = "SysSvc"
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\SysSvc
- Type = "2"
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\SysSvc
- Start = "2"
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\SysSvc
- ErrorControl = "0"
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\SysSvc
- ImagePath = "%SystemRoot%\system32\svchost.exe -k netsvcs"
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\SysSvc
- ObjectName = "LocalSystem"
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\SysSvc
- Description = "Creates a network connections."
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\SysSvc\Parameter
- ServiceDll = "%System Root%\ProgramData\Microsoft\Windows\Wmikje.dll"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Security\Svc
- SysSvc = "idle"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Security\Svc\Path
- SysSvc = "%System Root%\ProgramData\Microsoft\Windows\Wmikje.dll"
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\SystemServices
- DisplayName = "SystemServices"
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\SystemServices
- Type = "2"
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\SystemServices
- Start = "2"
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\SystemServices
- ErrorControl = "0"
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\SystemServices
- ImagePath = "%SystemRoot%\system32\svchost.exe -k netsvcs"
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\SystemServices
- ObjectName = "LocalSystem"
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\SystemServices
- Description = "{random characters}"
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\SystemServices\Parameter
- ServiceDll = "%System Root%\ProgramData\Microsoft\Windows\UDPsyc.dll"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Security\Svc
- SystemServices = "idle"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Security\Svc\Path
- SystemServices = "%System Root%\ProgramData\Microsoft\Windows\UDPsyc.dll"
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\SystemUpdate
- DisplayName = "SystemUpdate"
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\SystemUpdate
- Type = "2"
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\SystemUpdate
- Start = "2"
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\SystemUpdate
- ErrorControl = "0"
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\SystemUpdate
- ImagePath = "%SystemRoot%\system32\svchost.exe -k netsvcs"
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\SystemUpdate
- ObjectName = "LocalSystem"
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\SystemUpdate
- Description = "Manage the RPC name service database."
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\SystemUpdate\Parameter
- ServiceDll = "%System Root%\ProgramData\Microsoft\Windows\DHCPpef.dll"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Security\Svc
- SystemUpdate = "idle"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Security\Svc\Path
- SystemUpdate = "%System Root%\ProgramData\Microsoft\Windows\DHCPpef.dll"
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\W32Service
- DisplayName = "W32Service"
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\W32Service
- Type = "2"
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\W32Service
- Start = "2"
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\W32Service
- ErrorControl = "0"
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\W32Service
- ImagePath = "%SystemRoot%\system32\svchost.exe -k netsvcs"
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\W32Service
- ObjectName = "LocalSystem"
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\W32Service
- Description = "Provide software installation services such as Assign, Publish, and Remove."
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\W32Service\Parameter
- ServiceDll = "%System Root%\ProgramData\Microsoft\Windows\Netxxg.dll"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Security\Svc
- W32Service = "idle"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Security\Svc\Path
- W32Service = "%System Root%\ProgramData\Microsoft\Windows\Netxxg.dll"
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\W32Log0n
- DisplayName = "W32Log0n"
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\W32Log0n
- Type = "2"
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\W32Log0n
- Start = "2"
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\W32Log0n
- ErrorControl = "0"
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\W32Log0n
- ImagePath = "%SystemRoot%\system32\svchost.exe -k netsvcs"
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\W32Log0n
- ObjectName = "LocalSystem"
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\W32Log0n
- Description = "{random characters}"
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\W32Log0n\Parameter
- ServiceDll = "%System Root%\ProgramData\Microsoft\Windows\Servicecry.dll"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Security\Svc
- W32Log0n = "idle"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Security\Svc\Path
- W32Log0n = "%System Root%\ProgramData\Microsoft\Windows\Servicecry.dll"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\uybut
- netsvcs = "{random characters}"
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\WinLog0n
- DisplayName = "WinLog0n"
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\WinLog0n
- Type = "2"
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\WinLog0n
- Start = "2"
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\WinLog0n
- ErrorControl = "0"
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\WinLog0n
- ImagePath = "%SystemRoot%\system32\svchost.exe -k netsvcs"
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\WinLog0n
- ObjectName = "LocalSystem"
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\WinLog0n
- Description = "{random characters}"
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\WinLog0n\Parameter
- ServiceDll = "%System Root%\ProgramData\Microsoft\Windows\NetBin373.dll"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Security\Svc
- WinLog0n = "header"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Security\Svc\Path
- WinLog0n = "%System Root%\ProgramData\Microsoft\Windows\NetBin373.dll"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Security\Cmd
- Verdec = "MailSelfSend3"
Step 5
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\SOFTWARE\Microsoft\Windows NT\CurrentVersion\SvcHost
- From: netsvcs = "{random characters}"
To: netsvcs = ""{random values}""
- From: netsvcs = "{random characters}"
Step 6
Search and delete these files
- %User Temp%\f87f9693181907a56f607e88cdb4f9c7.zip
- %System Root%\ProgramData\Microsoft\Windows\NetBin373.dll
- %User Temp%\e6c12490118ead39d64741b76e024397.zip
- D:\RECYCLER\1.swf
- %System Root%\e904f9ac10b4aef3211008d3a4b978cc69c9c6d3_f87f9693181907a56f6exe.com).xls
- %User Profile%\Microsoft\Crypto
- %User Profile%\Crypto\RSA
- %User Profile%\RSA\S-1-5-18
- %System Root%\ProgramData\Microsoft\Windows\NetCC467.html
- %System Root%\ProgramData\Microsoft\Windows\NetCC8.html
- %System Root%\ProgramData\Microsoft\Windows\NetCC458.html
- %System Root%\ProgramData\Microsoft\Windows\NetCC356.html
- %System Root%\ProgramData\Microsoft\Windows\NetCC293.html
- %System Root%\ProgramData\Microsoft\Windows\NetCC407.html
- %System Root%\ProgramData\Microsoft\Windows\NetCC245.html
- %System Root%\ProgramData\Microsoft\Windows\NetCC118.html
- %System Root%\ProgramData\Microsoft\Windows\NetCC47.html
- %System Root%\ProgramData\Microsoft\Windows\NetCC39.html
- \notepad.exe
Step 7
Search and delete these folders
- %System Root%\ProgramData\Microsoft
- %System Root%\ProgramData\Microsoft\Windows
- D:\RECYCLER
- %System Root%\RECYCLER
Step 8
Restart in normal mode and scan your computer with your Trend Micro product for files detected as TROJ_INJECT.UT. 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 deleted/modified files and/or registry entries from backup
*Note: Only Microsoft-related files/keys/values will be restored. If this malware/grayware also deleted registry keys/values related to programs that are not from Microsoft, please reinstall those programs on your computer.
- %User Profile%\Application Data\Microsoft
Step 10
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.
- %System Root%\RECYCLER\game.xls
- %System Root%\ProgramData\Microsoft\Windows\Sessionmzz.dll
- %System Root%\ProgramData\Microsoft\Windows\Wmikje.dll
- %System Root%\ProgramData\Microsoft\Windows\UDPsyc.dll
- %System Root%\ProgramData\Microsoft\Windows\DHCPpef.dll
- %System Root%\ProgramData\Microsoft\Windows\Netxxg.dll
- %System Root%\ProgramData\Microsoft\Windows\Servicecry.dll
- %System Root%\ProgramData\Microsoft\Windows\NetCC427.ini
- jpg
- txt
- %Windows%\SoftwareDistribution\DataStore\Logs\edbtmp.log
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