Trojan.Rontokbro
Trojan.Rontokbro is a very harmful Trojan that will disable some Windows resources and performs denial of service (DoS) attacks on predefined web sites. The Trojan may also drop other malicious files and create a bunch of registry entries essential for its operation.
Alias: Virus.Win32.VB.ic, Worm:Win32/Baluk.gen, Trojan.Win32.Agent.bdh, Trojan:Win32/VB.AAI, Virus.Win32.VB.ic, Generic.dx, Trojan.Win32.Agent
Damage Level: Medium
Systems Affected: Windows 9x, 2000, XP, Windows Vista
Characteristics
When Trojan.Rontokbro is executed, it will create numerous executable files such as .exe, .com, .scr under System folder of Windows. It will also create several registry entries that allow the Trojan to run when Windows starts. Other registry entries attempts to disable Windows functionalities including task manager, folder options, desktop, control panel and DOS command.
Trojan.Rontokbro creates a desktop icon, which shows a combined logo of Microsoft Windows and Linux.
The most devastating it can do to an infected computer is to delete all files from various folders and displays a text messages like:
“Your PC was killed by Rontok”
How to Remove Trojan.Rontokbro
1. Temporarily Disable System Restore (Windows Me/XP). [how to]
2. To be able to identify even the most recent variant of Trojan.Rontokbro, open your antivirus application and update the virus definition file.
3. Start Windows in Safe Mode with Networking.
- From a power-off state, turn on the computer and press F8 on your keyboard repeatedly.
- Your computer will display Windows Advanced Boot Options menu. Please select Safe Mode with Networking.
- The system will now boot Windows and loads only necessary drivers and files.
4. Open your antivirus program and run a full system scan. After the scan, delete all infected items. If unable to delete, better place them in quarantine. Once the scan is complete, please proceed with the next step.
Scan with Norton Power Eraser:
Additional virus removal tool like Norton Power Eraser provides deep scanning technology to eliminate other threats not detected by a normal virus scan. Use this tool with extra caution.
5. Go to this link and download Norton Power Eraser.
6. Once the download completes, double click on the file NPE.exe to run the program.
7. It will prompt for End User License Agreement, click on Accept to continue.
8. On NPE main window, click on Scan. Then select Exclude Rootkit Scan. Click on Continue to proceed.
9. Virus scanning may take some time. After running the scan, NPE will display the scan result.
Important! If there are any detected threats under Suspicious, remove the check mark. Only threats in Detected category are necessary to remove at this point. Make sure that you mark the Create System Restore Point before proceeding with the fix.
10. Now click on Fix to start removing the threats including Trojan.Rontokbro remnants if there are any.
11. When done, Norton Power Eraser will restart the computer. Then after a reboot, it will initialize and display the eliminated threats.
12. You may now close Norton Power Eraser.