Threat Database Trojans Trojan.Sefnit.B

Trojan.Sefnit.B

By CagedTech in Trojans
Published:
Last updated:

Threat Scorecard

Threat Level: 80 % (High)
Infected Computers: 20
First Seen: January 5, 2011
OS(es) Affected: Windows

The detection of Trojan.Sefnit.B on your system indicates a potential security threat that requires immediate attention. This type of malware can compromise your computer's security and put your personal data at risk. It is essential to understand the nature of this threat and take prompt action to remove it from your system.

What Is Trojan.Sefnit.B?

Trojan.Sefnit.B is a type of malware that can infect your computer without your knowledge or consent. The name "Trojan" refers to the fact that this malware can disguise itself as a legitimate program or file, allowing it to bypass your system's security defenses. Once installed, it can cause a range of problems, from slowing down your computer's performance to stealing your sensitive information.

How Trojan.Sefnit.B Operates

Malware like Trojan.Sefnit.B typically operates by exploiting vulnerabilities in your system or by tricking you into installing it. Once installed, it can connect to a remote server to download additional malware or receive instructions from its creators. This can lead to a range of malicious activities, including data theft, unauthorized access to your system, and disruption of your computer's normal functioning.

Symptoms of Infection

If your system is infected with Trojan.Sefnit.B, you may notice a range of symptoms, including slow computer performance, unexpected pop-ups or ads, and unfamiliar programs or icons on your desktop. You may also experience problems with your internet connection, such as frequent disconnections or redirects to unwanted websites. In some cases, you may not notice any symptoms at all, which is why regular scans and monitoring of your system are crucial.

  • Slow computer performance
  • Unexpected pop-ups or ads
  • Unfamiliar programs or icons on your desktop
  • Problems with your internet connection

How to Remove Trojan.Sefnit.B

  1. Boot your computer in Safe Mode with Networking to prevent the malware from loading and to allow you to download and install removal tools.
  2. Use a reputable anti-malware tool, such as SpyHunter, to perform a full scan of your system and remove any detected threats.
  3. Uninstall any suspicious programs or applications that you do not recognize or that were installed without your consent.
  4. Reset your web browsers, including Chrome, Firefox, and Edge, to their default settings to remove any malicious extensions or add-ons.
  5. Reboot your computer and perform a follow-up scan to ensure that the malware has been completely removed.

Conclusion

Removing Trojan.Sefnit.B from your system requires careful attention to detail and a thorough understanding of the malware's characteristics. By following the steps outlined above and taking proactive measures to protect your system, you can minimize the risk of infection and keep your personal data safe. Remember to always be cautious when downloading software or clicking on links from unknown sources, and to regularly scan your system for potential threats.

Aliases

15 security vendors flagged this file as malicious.

Antivirus Vendor Detection
AVG Generic22.AJIQ
Ikarus Gen.Variant.Kazy
AhnLab-V3 Trojan/Win32.Suspicious
Kaspersky Trojan.Win32.Sefnit.ofq
Avast Win32:MalOb-FH
McAfee Generic.dx!vsk
AVG Generic20.YTS
eTrust-Vet Win32/Sefnit.B!generic
Sophos Mal/Generic-L
McAfee-GW-Edition Generic.dx!vhc
AntiVir TR/Spy.81920.492
Kaspersky Trojan.Win32.Sefnit.kzn
Symantec Backdoor.Bifrose
F-Prot W32/MalwareF.TNWT
McAfee Senfit.a

File System Details

Trojan.Sefnit.B may create the following file(s):
# File Name MD5 Detections
1. QuickAuthenticationvga.dll 18129d07f615c8c51c882749a6b5d1fa 4
2. OP9APrsC9TJ.cpl d8c9b88953c6c09b8caa437773867db6 3
3. StartMenu.dll 02423096115aeba6e4b4ca3704661a94 2
4. RemovableStorage.dll 4cfbda2751c254c646c0062b4fa15baf 2
5. QuickComms80.dll def2d09e991d1bdf9b59f4e4c8c4612c 2
6. InstallShieldsetup.dll 03c1b9d6a4b12bb5035a39184839edc6 1
7. ZbCmdExitClass.dll 493daa7daa835d28395a4ab0550a2d47 1
8. ContentIndex.dll e9037154f61ff3abaf696e37f5282acf 1
9. LeafConditionClass.dll 782192f714b1f4250312dd74d3dae826 1
10. d3dobjdll32.dll f2ff51bd496a25bf995136dbbf8272b8 1