Solution:
Identifying the Malware Program
To remove this malware, first identify the malware program.
- Scan your system with your Trend Micro antivirus product.
- NOTE the path and file name of all files detected as WORM_RBOT.BWR.
Trend Micro customers need to download the latest virus pattern file before scanning their system. Other users can use Housecall, Trend Micro's online virus scanner.
Terminating the Malware Program
This procedure terminates the running malware process. You will need the name(s) of the file(s) detected earlier.
If the process you are looking for is not in the list displayed by Task Manager, proceed to the succeeding solution set.
- Open Windows Task Manager.
• On Windows 95, 98, and ME, press
CTRL%20ALT%20DELETE
• On Windows NT, 2000, XP, and Server 2003, press
CTRL%20SHIFT%20ESC, then click the Processes tab.
- In the list of running programs*, locate the malware file(s) detected earlier.
- Select one of the detected files, then press either the End Task or the End Process button, depending on the version of Windows on your system.
- Do the same for all detected malware files in the list of running processes.
- To check if the malware process has been terminated, close Task Manager, and then open it again.
- Close Task Manager.
*NOTE: On systems running Windows 95, 98, and ME, Windows Task Manager may
not show certain processes. You can use a third party process viewer such as
Process Explorer to terminate the malware process. Otherwise, continue with the next procedure, noting additional instructions. If you were
not able to terminate the malware process as described in the previous procedure, restart your system.
Editing the Registry
This malware modifies the system's registry. Users affected by this malware may need to modify or delete specific registry keys or entries. For detailed information regarding registry editing, please refer to the following articles from Microsoft:
- HOW TO: Backup, Edit, and Restore the Registry in Windows 95, Windows 98, and Windows ME
- HOW TO: Backup, Edit, and Restore the Registry in Windows NT 4.0
- HOW TO: Backup, Edit, and Restore the Registry in Windows 2000
- HOW TO: Back Up, Edit, and Restore the Registry in Windows XP and 2003
Removing Autostart Entries from the Registry
Removing autostart entries from the registry prevents the malware from executing at startup.
If the registry entries below are not found, the malware may not have executed as of detection. If so, proceed to the succeeding solution set.
- Open Registry Editor. Click Start>Run, type REGEDIT, then press Enter.
- In the left panel, double-click the following:
HKEY_CURRENT_USER>Software>Microsoft>
Windows>CurrentVersion>Run
- In the right panel, locate and delete the entry:
MS Office1 Startup = "OfficeGUI1.exe"
- In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Microsoft>
Windows>CurrentVersion>RunServices
- In the right panel, locate and delete the entry:
MS Office1 Startup = "OfficeGUI1.exe"
- In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Microsoft>
Windows>CurrentVersion>Run
- In the right panel, locate and delete the entry:
MS Office1 Startup = "OfficeGUI1.exe"
- Close Registry Editor.
Important Windows ME/XP Cleaning Instructions
Users running Windows ME and XP must disable System Restore to allow full scanning of infected systems.
Users running other Windows versions can proceed with the succeeding procedure set(s).
Running Trend Micro Antivirus
If you are currently running on safe mode, please restart your system normally before performing the following solution.
Scan your system with Trend Micro antivirus and delete files detected as
WORM_RBOT.BWR. To do this, Trend Micro customers must download the latest virus pattern file and scan their system. Other Internet users can use HouseCall, Trend Micro's online virus scanner.
Applying Patches
This malware exploits known vulnerabilities in Windows. Download and install the fix patches provided by Microsoft from the following Web pages:
Refrain from using this product until the appropriate patch has been installed. Trend Micro advises users to download critical patches upon release by vendors.
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