Threat Database Trojans Trojan.Sefnit.AA

Trojan.Sefnit.AA

By CagedTech in Trojans
Published:
Last updated:

Threat Scorecard

Threat Level: 80 % (High)
Infected Computers: 277
First Seen: November 21, 2011
OS(es) Affected: Windows

The detection of Trojan.Sefnit.AA on your system indicates a potential security threat that requires immediate attention. This type of malware is designed to compromise the security and integrity of your computer, and it's essential to understand its nature and how to remove it effectively.

What Is Trojan.Sefnit.AA?

Trojan.Sefnit.AA is a type of Trojan horse malware, which is a broad category of malicious software that disguises itself as legitimate to gain unauthorized access to a computer system. The name "Trojan.Sefnit.AA" suggests that it belongs to a specific subgroup of Trojans, but without more information, it's challenging to determine its exact characteristics or behaviors. Generally, Trojans are known for their ability to create backdoors, allowing remote access to the infected system, and can lead to a variety of malicious activities, including data theft, espionage, and the distribution of additional malware.

How Trojan.Sefnit.AA Operates

Like other Trojans, Trojan.Sefnit.AA likely operates by exploiting vulnerabilities in software or tricking users into executing the malware. Once installed, it may communicate with its command and control servers to receive instructions or send stolen data. The specific operations of Trojan.Sefnit.AA can vary, but common behaviors include installing additional malware, modifying system settings, and stealing sensitive information such as login credentials or personal data. The malware may also attempt to evade detection by using various techniques to hide its presence or disguise its activities as legitimate system operations.

Symptoms of Infection

The symptoms of a Trojan.Sefnit.AA infection can be subtle and may not always be immediately apparent. However, common indicators of a Trojan infection include unusual system behavior, such as unexpected pop-ups, slow system performance, or unfamiliar programs running in the background. Users may also notice changes in their browser settings or the presence of unwanted toolbars. In some cases, the malware may cause system crashes or freezes, especially if it is consuming significant system resources or interfering with critical system processes.

How to Remove Trojan.Sefnit.AA

  1. Boot your computer in Safe Mode with Networking to prevent the malware from loading and to allow for a more straightforward removal process.
  2. Perform a full scan of your system using a reputable anti-malware tool, such as SpyHunter, to detect and remove all components of the Trojan.Sefnit.AA malware.
  3. Uninstall any suspicious programs that were installed around the time of the infection. Be cautious and only remove programs that you are certain are malicious or unnecessary.
  4. Reset your web browsers (Chrome, Firefox, Edge) to their default settings to remove any malicious extensions or settings changes made by the malware.
  5. Reboot your computer and perform another full scan with your anti-malware tool to ensure that all remnants of the malware have been removed.

Conclusion

Removing Trojan.Sefnit.AA from your system requires a combination of technical knowledge and the right tools. By following the steps outlined above and maintaining good security practices, such as keeping your operating system and software up to date, using strong antivirus software, and being cautious when opening email attachments or downloading files from the internet, you can significantly reduce the risk of future infections. Remember, prevention is key, but when infections do occur, prompt and effective action is necessary to protect your data and system integrity.

Aliases

15 security vendors flagged this file as malicious.

Antivirus Vendor Detection
Kaspersky Trojan.Win32.Sefnit.b
CAT-QuickHeal Trojan.Sefnit.b
Symantec Trojan.Sefnit!gen4
AntiVir TR/Kazy.43653.402
BitDefender Gen:Variant.Kazy.44199
Fortinet W32/Genome.VA!tr
Antiy-AVL Trojan/Win32.Genome.gen
Kaspersky Trojan.Win32.Genome.aarxq
AntiVir TR/Sefnit.AA.222
Fortinet W32/Sefnit.BZ
AntiVir TR/Sefnit.AA.543
Kaspersky Trojan.Win32.Genome.aalge
NOD32 Win32/Sefnit.BZ
Fortinet W32/Sefnit.C!tr
Antiy-AVL Trojan/win32.agent.gen

File System Details

Trojan.Sefnit.AA may create the following file(s):
# File Name MD5 Detections
1. lanEventSvcs.dll 13a1c44ec7d9669f406993a779069e3e 35
2. Appapicdrom.dll 57327577b576b62ffab0ce7765d3454d 31
3. SmartnetHelper.dll 466abd8ac5fe983f775e5137a428153c 28
4. lvvm.exe d3e864edf18ae44d324c6baae6701ce9 25
5. isaMouseSvcs.dll 3f34a50a89d9237c8c74ff85b5bf9af6 22
6. AppmapWan.dll a14881f038e1e8ed657233363566b647 20
7. xbLhfdIDeqvrfy.exe 3fc7206da1ed5cbae39a967f426a7a64 14
8. SysNetTray.dll d379c96412e97f71ae750a87a6e351e4 11
9. MSNMapLite.dll 40f385a60b500213bc8310c6c2e13cbf 10
10. BthPad3xx.dll 5b5215c537158d29e6d837cea9a69a97 9
11. WdCommsAgent.dll 6d4c0119ab5a8194c42714889efd5be9 7
12. oleMouseapi.dll 8f83cdce0afb4c0fc7d433ba1a965cc7 6
13. Appmapplugin.dll 46d616d1282d8eb90c8e7e36ed9a52ff 6
14. DfrgMouseIde.dll 28566c724567be9fd1078bfadf625158 5
15. isaMobileUsb.dll 134b453f7b46cf176d33f9ab63161afa 5
16. Agerenetvga.dll 81138f5e3a6f78f077df8cd483769136 5
17. SmartHelpdll32.dll ea2c30c723cf3bf4229db6b0aec2d45b 5
18. DfrgHelpTrust.dll 621562bcb10be0cd4c83d65997c08f56 5
19. Systemcfgpnp.dll 4cf3a69415c866c2aeee4706653dcbf4 4
20. WdHelpSupport.dll 15f71b4a7f0de0217ab16733b41341ef 2
21. advNetNetM.dll 56dd224321262006aa794dfe9849b7a1 2
22. CatDBMapInterval.dll a2a4217c7bf336ac2dc5d766248c3125 1
23. msEventCmds.dll 1bdc0812567498891850a9d4720b1780 1
24. EapcfgRpl.dll 6e3b14136ad362e6219badbe70d4e7a9 1
25. HSXs6D25VRH9a5.exe 3a8b7007da37b0e999c1421ee91eb48d 1
26. lanMainman.dll 039cdd23b729f8de7f216f65794293ec 1