Threat Database Trojans Trojan.Siscos.A

Trojan.Siscos.A

By CagedTech in Trojans
Published:
Last updated:

Threat Scorecard

Threat Level: 80 % (High)
Infected Computers: 103
First Seen: April 8, 2010
Last Seen: December 12, 2025
OS(es) Affected: Windows

The detection of Trojan.Siscos.A indicates a potential threat to your computer's security and integrity. This Trojan-type threat can compromise your system's stability and put your personal data at risk. It is essential to understand the nature of this threat and take immediate action to remove it from your system.

What Is Trojan.Siscos.A?

Trojan.Siscos.A is a type of malware that can infiltrate 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 measures. Once inside, it can cause a range of problems, from slowing down your computer to stealing sensitive information.

How Trojan.Siscos.A Operates

Trojan.Siscos.A operates by exploiting vulnerabilities in your system or tricking you into installing it. It can spread through various means, including infected software downloads, suspicious email attachments, or compromised websites. Once installed, it can connect to a remote server to receive instructions or upload stolen data. This malware can also modify system settings, create backdoors, or install additional malicious programs.

  • It can create a backdoor to allow remote access to your computer
  • It can modify system files and registry entries to maintain its presence
  • It can communicate with its creators to receive updates or transmit stolen data

Symptoms of Infection

If your computer is infected with Trojan.Siscos.A, you may notice various symptoms, including slow system performance, frequent crashes, or unusual network activity. You may also see unfamiliar programs or icons on your desktop, or receive unexpected pop-ups or alerts. In some cases, you may not notice any symptoms at all, which is why regular system scans and monitoring are crucial.

  • Slow system performance or freezing
  • Unexplained changes to system settings or files
  • Unfamiliar programs or icons on your desktop

How to Remove Trojan.Siscos.A

  1. Boot your computer in Safe Mode with Networking to prevent the malware from loading
  2. Use a reputable anti-malware tool, such as SpyHunter, to perform a full system scan and remove any detected threats
  3. Uninstall any suspicious programs or applications that may be related to the malware
  4. Reset your web browsers, including Chrome, Firefox, and Edge, to their default settings to remove any malicious extensions or plugins
  5. Reboot your computer and perform another system scan to ensure that the malware has been completely removed

Conclusion

Removing Trojan.Siscos.A from your system requires immediate attention and a thorough approach. By following the steps outlined above and maintaining good system hygiene, you can help prevent future infections and keep your personal data safe. Remember to always be cautious when downloading software or opening email attachments, and to regularly scan your system for potential threats. By taking these precautions, you can help protect your computer and your sensitive information from the risks associated with Trojan.Siscos.A and other types of malware.

Aliases

9 security vendors flagged this file as malicious.

Antivirus Vendor Detection
Sophos Mal/Generic-L
McAfee-GW-Edition Heuristic.BehavesLike.Win32.Trojan.L
Kaspersky Trojan.Win32.Siscos.ox
Ikarus Trojan-Dropper.Agent
Comodo Heur.Suspicious
CAT-QuickHeal Trojan.Agent.ATV
Avast Win32:Agent-AJMC
AntiVir TR/Agent.75776
a-squared Trojan-Dropper.Agent!IK

File System Details

Trojan.Siscos.A may create the following file(s):
# File Name MD5 Detections
1. csrss.exe 7c7799f244c3c938749a4b2a77389cf2 5
2. smss.exe bb594905e7214b96490001ee26504d30 0