Threat Database Trojans Trojan.Sirefef.AC

Trojan.Sirefef.AC

By CagedTech in Trojans
Published:
Last updated:

Threat Scorecard

Threat Level: 80 % (High)
Infected Computers: 1
First Seen: November 2, 2012
OS(es) Affected: Windows

The detection of Trojan.Sirefef.AC on your system indicates a potential security threat that requires immediate attention. This malware is designed to compromise the integrity of your computer, and its presence can lead to various issues, including data theft, system crashes, and unauthorized access to your personal information. 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.AC?

Trojan.Sirefef.AC is a type of malicious software that can infect your computer through various means, such as exploited vulnerabilities, phishing attacks, or drive-by downloads. Once installed, it can establish a connection with its command and control server, allowing attackers to remotely control your system, steal sensitive data, and install additional malware. The name Trojan.Sirefef.AC itself does not directly indicate a specific malware family, but rather serves as a detection label for this particular threat.

How Trojan.Sirefef.AC Operates

Trojan.Sirefef.AC operates by exploiting system vulnerabilities and using social engineering tactics to trick users into installing the malware. It can disguise itself as a legitimate program or attachment, making it challenging to detect. Once inside, it can create backdoors, allowing unauthorized access to your system, and can also spread to other computers through network connections or removable drives. The malware can also modify system settings, disable security software, and intercept sensitive information, such as login credentials and financial data.

Symptoms of Infection

The symptoms of a Trojan.Sirefef.AC infection can vary, but common indicators include slow system performance, frequent crashes, and unusual network activity. You may also notice unfamiliar programs or icons on your desktop, or receive unexpected pop-ups and alerts. In some cases, the malware can remain dormant, making it difficult to detect without proper scanning tools. It is crucial to be vigilant and monitor your system for any suspicious activity, as early detection is key to preventing further damage.

How to Remove Trojan.Sirefef.AC

  1. Boot your computer in Safe Mode with Networking to prevent the malware from loading and to allow for a more effective removal process.
  2. Use a reputable anti-malware tool, such as SpyHunter, to perform a full scan of your system and detect any associated malware.
  3. Uninstall any suspicious programs or applications that may be related to the infection.
  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 another full scan to ensure that the malware has been completely removed.

Conclusion

Removing Trojan.Sirefef.AC from your system requires a thorough and multi-step approach. By following the steps outlined above and maintaining good security practices, such as keeping your operating system and software up-to-date, using strong passwords, and being cautious when opening attachments or clicking on links, you can help prevent future infections and protect your personal data. Remember to always use reputable security software and stay informed about the latest threats to ensure the security and integrity of your computer.

Aliases

11 security vendors flagged this file as malicious.

Antivirus Vendor Detection
AVG Crypt.AQLW
AhnLab-V3 Win-Trojan/Zeroaccess.5632
Microsoft Trojan:Win32/Sirefef.AC
eTrust-Vet Win32/Sirefef.EB
AntiVir TR/Sirefef.BV.2
Sophos Mal/ZAccess-M
Avast Win32:Sirefef-PM [Rtk]
Symantec Trojan.Zeroaccess!inf
NOD32 probably a variant of Win32/Sirefef.ER
K7AntiVirus Riskware
McAfee Generic.dx!bdmv

SpyHunter Detects & Remove Trojan.Sirefef.AC

File System Details

Trojan.Sirefef.AC may create the following file(s):
# File Name MD5 Detections
1. delldmi.dll b93fe96b29f78728d6de9c670b1eb9a2 1