Trojan.Downexec.B!inf
Trojan.Downexec.B!inf is a common detection method used to identify files that were infected with variants of Trojan.Downexec family. Trojan.Downexec.B!inf may attempt to connect to a distant server to download and execute malicious files onto victim’s computer.
Damage Level: Medium
Systems Affected: Windows 9x, 2000, XP, Windows Vista
Characteristics
When Trojan.Downexec.B!inf is executed, it carry out an operation that disables security and hard disk protection of the affected system.
The Trojan infects a legitimate Explorer.exe file so that it runs when the process loads. This method may provide a communication between the Trojan and remote server to download and execute additional malware on the infected computer.
Trojan.Downexec.B!inf also embeds malicious code into Internet Explorer’s IEXPLORER.EXE for the same purpose of attaching more threats.
How to Remove Trojan.Downexec.B!inf
1. Temporarily Disable System Restore (Windows Me/XP). [how to]
2. Open your antivirus application and update the virus definition file. This method ensures that your antivirus program can detect even newer variants of Trojan.Downexec.B!inf
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, better place them in quarantine. Once the scan is complete, please proceed with the next step.
Online Virus Scanner:
Another way to remove Trojan.Downexec.B!inf without the need to install additional antivirus application is to perform a thorough scan with free online virus scanner that can be found on websites of legitimate anti-virus and security provider.
5. Go to Online Virus Scanner list and run a virus scan. This may require plug-ins, add-on or Activex object, please install if you want to proceed with scan.
6. After completing the necessary download, your system is now ready for online virus scanning.
7. Select an option in which you can thoroughly scan the computer to make sure that it will find and delete entirely all infections not detected on previous scan.
8. Remove or delete all detected items.
9. When scanning is finished you may now restart the computer in normal mode.
Dispointed at NIS
Jun 12, 2008 @ 13:23:58
Trojan.Downexec.B!inf cannot be removed by Norton Internet Security 2008. Even I run a full scan in safe mode.
clwk
Jun 17, 2008 @ 09:43:11
I found the virus last night and Norton cannot remove ziti. I am very puzzled. Who can help me?
precisesecurity
Jun 17, 2008 @ 13:52:29
We are still waiting for the sample to test effective removal. For now, please try Malwarebytes Anti-Malware and Standard Virus Removal.