BKDR_CYCBOT.TX

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

Identify and terminate files detected as BKDR_CYCBOT.TX

1. Windows Task Manager may not display all running processes. In this case, please use a third-party process viewer, preferably Process Explorer, to terminate the malware/grayware/spyware file. You may download the said tool here.
2. If the detected file is displayed in either Windows Task Manager or Process Explorer but you cannot delete it, restart your computer in safe mode. To do this, refer to this link for the complete steps.
3. If the detected file is not displayed in either Windows Task Manager or Process Explorer, continue doing the next steps.

Step 3

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\Internet Settings
  • ProxyServer = http=127.0.0.1:55636
    
• In HKEY_CURRENT_USER\Software\Microsoft\Windows NT\CurrentVersion\Winlogon
  • Shell = explorer.exe,C:\Documents and Settings\winxp.BATCH57.000\Application Data\dwm.exe
    
• In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
  • conhost = C:\Documents and Settings\winxp.BATCH57.000\Application Data\Microsoft\conhost.exe
    • 
      

  To delete the registry value this malware/grayware created:

  1. Open Registry Editor.
     » For Windows 2000, Windows XP, and Windows Server 2003 users, click Start>Run, type regedit in the text box provided, and then press Enter.
     » For Windows Vista, Windows 7, and Windows Server 2008 (R2) users, click the Start button, type regedit in the Search input field then press Enter.
     » For Windows 8, Windows 8.1, and Windows Server 2012 (R2) users, right-click on the lower-left corner of the screen, click Run, type regedit in the text box provided, and then press Enter.
  2. In the left panel, double-click the following:
     HKEY_CURRENT_USER>Software>Microsoft>Windows>CurrentVersion>Internet Settings
  3. In the right panel, locate and delete the entry:
     ProxyServer = http
  4. In the left panel, double-click the following:
     HKEY_CURRENT_USER>Software>Microsoft>Windows NT>CurrentVersion>Winlogon
  5. In the right panel, locate and delete the entry:
     Shell = explorer.exe,C:>Documents and Settings>winxp.BATCH57.000>Application Data>dwm.exe
  6. In the left panel, double-click the following:
     HKEY_LOCAL_MACHINE>SOFTWARE>Microsoft>Windows>CurrentVersion>Run
  7. In the right panel, locate and delete the entry:
     conhost = C:>Documents and Settings>winxp.BATCH57.000>Application Data>Microsoft>conhost.exe
  8. Close Registry Editor.

Step 4

Restore these modified registry values

• In
  To: ws\CurrentVersion\Internet Settings
  • From: ProxyEnable = 1
    To: ProxyEnable = 0
    
• In HKEY_CURRENT_USER\Software\Microsoft\Windows NT\CurrentVersion\Windows
  • From: load = C:\DOCUME~1\WINXPB~1.000\LOCALS~1\Temp\csrss.exe
    To: load = {null}
    
• In HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Hardware Profiles\0001\Software\Microsoft\windows\CurrentVersion\Internet Settings
  • From: ProxyEnable = 1
    To: ProxyEnable = 0
    
• In HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Hardware Profiles\Current\Software\Microsoft\windows\CurrentVersion\Internet Settings
  • From: ProxyEnable = 1
    To: ProxyEnable = 0
    
• In HKEY_CURRENT_CONFIG\Software\Microsoft\windows\CurrentVersion\Internet Settings
  • From: ProxyEnable = 1
    To: ProxyEnable = 0
    • From:
      

  To restore registry values this malware/grayware modified:

  1. Open Registry Editor. To do this:
     
     • On Windows 2000, XP, and Server 2003:
       Click Start>Run, type REGEDIT in the text box provided, and then press Enter.
     • On Windows Vista, 7, and Server 2008 (R2):
       Click the Start button, type REGEDIT in the Search input field then press Enter.
     • On Windows 8, 8.1, and Server 2012 (R2):
       Right-click on the lower left corner of the screen and click Run, type REGEDIT in the Run input field, and then press Enter.
  2. In the left panel, double-click the following:
     HKEY_CURRENT_USER>Software>Microsoft>Windows>CurrentVersion>Internet Settings
  3. In the right panel, locate the registry value:
     ProxyEnable = 1
  4. Right-click on the value name and choose Modify. Change the value data of this entry to:
     ProxyEnable = 0
  5. In the left panel, double-click the following:
     HKEY_CURRENT_USER>Software>Microsoft>Windows NT>CurrentVersion>Windows
  6. In the right panel, locate the registry value:
     load = C:>DOCUME~1>WINXPB~1.000>LOCALS~1>Temp>csrss.exe
  7. Right-click on the value name and choose Modify. Change the value data of this entry to:
     load = {null}
  8. In the left panel, double-click the following:
     HKEY_LOCAL_MACHINE>SYSTEM>CurrentControlSet>Hardware Profiles>0001>Software>Microsoft>windows>CurrentVersion>Internet Settings
  9. In the right panel, locate the registry value:
     ProxyEnable = 1
  10. Right-click on the value name and choose Modify. Change the value data of this entry to:
      ProxyEnable = 0
  11. In the left panel, double-click the following:
      HKEY_LOCAL_MACHINE>SYSTEM>CurrentControlSet>Hardware Profiles>Current>Software>Microsoft>windows>CurrentVersion>Internet Settings
  12. In the right panel, locate the registry value:
      ProxyEnable = 1
  13. Right-click on the value name and choose Modify. Change the value data of this entry to:
      ProxyEnable = 0
  14. In the left panel, double-click the following:
      HKEY_CURRENT_CONFIG>Software>Microsoft>windows>CurrentVersion>Internet Settings
  15. In the right panel, locate the registry value:
      ProxyEnable = 1
  16. Right-click on the value name and choose Modify. Change the value data of this entry to:
      ProxyEnable = 0
  17. Close Registry Editor.

Step 5

Search and delete these components

Step 6

Scan your computer with your Trend Micro product to delete files detected as BKDR_CYCBOT.TX. 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.