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Threat Encyclopedia

TROJ_STASER.AB


PLATFORM:

Windows 2000, Windows XP, Windows Server 2003

OVERALL RISK RATING:
DAMAGE POTENTIAL:
DISTRIBUTION POTENTIAL:
REPORTED INFECTION:

  • Threat Type:Trojan

  • Destructiveness:No

  • Encrypted:

  • In the wild: Yes

OVERVIEW

TECHNICAL DETAILS

SOLUTION

Minimum Scan Engine:

9.300

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

[ Learn More ]

Step 3

Delete this registry key

[ Learn More ]

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\EventLog\Application
    • WsysSvc
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall
    • WsysControl
  • In HKEY_LOCAL_MACHINE\SOFTWARE
    • eSafeSecControl

Step 4

Delete this registry value

[ Learn More ]

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\Uninstall\WsysControl
    • DisplayName = "Wsys Control 10.2.1.2634"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\WsysControl
    • DisplayVersion = "10.2.1.2634"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\WsysControl
    • publisher = "Wsys Co., Ltd."
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\WsysControl
    • UninstallString = "%User Profile%\eSafe\eGdpSvc.exe -unsvc"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\WsysControl
    • DisplayIcon = "%User Profile%\eSafe\eGdpSvc.exe"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\eSafeSecControl
    • sid = "eGdp"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\eSafeSecControl
    • channel = "eGdp"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\eSafeSecControl
    • pid = "eSafe"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\eSafeSecControl
    • ver = "10.2.1.2634"
  • In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\Eventlog\Application\WsysSvc
    • EventMessageFile = "%User Profile%\eSafe\eGdpSvc.exe"
  • In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\Eventlog\Application\WsysSvc
    • TypesSupported = "7"

Step 5

Search and delete these components

[ Learn More ]
There may be some components that are hidden. Please make sure you check the Search Hidden Files and Folders checkbox in the "More advanced options" option to include all hidden files and folders in the search result.
  • %User Profile%\eSafe\eGdpSvc.exe
  • %User Profile%\eSafe\eDelayinfo.edb

Step 6

Search and delete these folders

[ Learn More ]
Please make sure you check the Search Hidden Files and Folders checkbox in the More advanced options option to include all hidden folders in the search result.
  • %User Profile%\Application Data\eSafe
  • %User Profile%\eSafe\log

Step 7

Restart in normal mode and scan your computer with your Trend Micro product for files detected as TROJ_STASER.AB. 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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