Threat Database Trojans Trojan.Sirefef.G

Trojan.Sirefef.G

By CagedTech in Trojans
Published:
Last updated:

Threat Scorecard

Threat Level: 80 % (High)
Infected Computers: 24
First Seen: February 16, 2011
OS(es) Affected: Windows

The detection of Trojan.Sirefef.G on your system indicates a potential security threat that requires immediate attention. This malware is designed to compromise the security and integrity of your computer, and its presence can lead to a range of problems, from data theft to system crashes. It is essential to understand the nature of this threat and take prompt action to remove it and prevent future infections.

What Is Trojan.Sirefef.G?

Trojan.Sirefef.G is a type of malicious software, or malware, that is classified as a Trojan. Trojans are programs that appear to be legitimate but actually allow unauthorized access to a computer system. They can be used to steal sensitive information, install additional malware, or provide a backdoor for remote access. The name Trojan.Sirefef.G suggests that it is a variant of a known malware threat, but the specifics of its operation and impact can vary.

How Trojan.Sirefef.G Operates

Malware like Trojan.Sirefef.G typically operates by exploiting vulnerabilities in software or tricking users into installing it. Once installed, it can run in the background, hidden from the user, and perform a variety of malicious activities. This can include collecting personal data, monitoring user activity, or downloading and installing additional malware. The exact mechanisms used by Trojan.Sirefef.G are not specified, but its detection indicates that it has been identified as a potential threat to your system's security.

Symptoms of Infection

Systems infected with Trojan.Sirefef.G may exhibit a range of symptoms, although some infections may not display any noticeable signs. Common indicators of a malware infection include slow system performance, frequent crashes, unfamiliar programs or icons, and unexpected changes to system settings. Additionally, you might notice unusual network activity, such as increased data usage or unfamiliar connections. If you suspect that your system is infected, it is crucial to take immediate action to mitigate the threat.

How to Remove Trojan.Sirefef.G

  1. Enter Safe Mode with Networking to prevent the malware from interfering with the removal process. This mode allows you to use the internet to download removal tools while limiting the malware's ability to run.
  2. Download and run a full scan with a reputable anti-malware tool, such as SpyHunter. Ensure the tool is updated to the latest version to increase the chances of successful removal.
  3. Uninstall any suspicious programs that you do not recognize or that were installed around the time the malware was detected. Be cautious and only remove programs you are certain are not essential to your system's operation.
  4. Reset your web browsers (Chrome, Firefox, Edge) to their default settings. This can help remove any malicious extensions or settings changes made by the malware.
  5. Reboot your system and perform another scan with your anti-malware tool to ensure that the threat has been fully removed. Repeat this process until no threats are detected.

Conclusion

The removal of Trojan.Sirefef.G requires careful and immediate action to protect your system and data. By following the steps outlined above and maintaining good security practices, such as keeping your software up to date and being cautious with email attachments and downloads, you can significantly reduce the risk of future infections. Remember, the detection of any malware is a serious issue, and prompt action is necessary to prevent potential harm to your system and personal data.

Aliases

15 security vendors flagged this file as malicious.

Antivirus Vendor Detection
eSafe Win32.TRRootkit
AVG Rootkit-Agent
eTrust-Vet Win32/ZAccess.C!generic
BitDefender Rootkit.Sirefef.G
Kaspersky Virus.Win32.ZAccess.c
Symantec Trojan.Zeroaccess!inf
Fortinet W32/ZAccess.C!tr.bdr
Ikarus Trojan.SuspectCRC
McAfee-GW-Edition Heuristic.BehavesLike.Win32.Rootkit.H
Avast Win32:Sirefef [Rtk]
Symantec Trojan.Zeroaccess
F-Prot W32/Rootkit.M.gen!Eldorado
NOD32 a variant of Win32/Rootkit.Agent.NUT
McAfee Generic Rootkit.ev
AVG Generic22.AUPW

File System Details

Trojan.Sirefef.G may create the following file(s):
# File Name MD5 Detections
1. imapi.sys e4449b9d55b4d91eb80550c692be28ad 12
2. msiscsi.sys 99e592b806911ebe658a937fc27db6ba 4
3. ipsec.sys becc04604fbbd632941e80d4c4780f9b 3
4. cdrom.sys 978ed592cda9b467c18ad3bba9046233 1
5. rasl2tp.sys 033299903d3ae0dff02a70ae96a42749 1
6. i8042prt.sys 49421d37d3738d68d11d9791bde22e7c 1