Threat Database Backdoors Backdoor.Necurs

Backdoor.Necurs

By CagedTech in Backdoors
Published:
Last updated:

Threat Scorecard

Popularity Rank: 20,890
Threat Level: 60 % (Medium)
Infected Computers: 42,027
First Seen: January 15, 2014
Last Seen: September 15, 2026
OS(es) Affected: Windows

The detection of Backdoor.Necurs on your system indicates a potential security threat that requires immediate attention. This detection name suggests a type of malicious software designed to allow unauthorized access to your computer, which could lead to a range of serious security issues. Understanding what Backdoor.Necurs is, how it operates, its symptoms, and how to remove it are crucial steps in protecting your digital security and privacy.

What Is Backdoor.Necurs?

Backdoor.Necurs refers to a type of backdoor threat. A backdoor is a malicious program that gives hackers remote access to a victim's computer system, allowing them to perform various malicious activities without being detected. This can include stealing sensitive information, installing additional malware, or using the compromised system for malicious purposes such as spamming or launching attacks on other systems. The term "Backdoor.Necurs" itself does not specify a particular malware family but indicates the presence of a backdoor-type threat.

How Backdoor.Necurs Operates

Backdoor threats like Backdoor.Necurs typically operate by first infecting a system through various means, such as exploiting vulnerabilities, phishing attacks, or being downloaded along with other software. Once installed, they can communicate with their command and control (C&C) servers to receive instructions. These instructions can range from sending spam, stealing personal data, to downloading additional malicious software. The backdoor can also be used to create botnets, which are networks of infected computers used for malicious activities.

Symptoms of Infection

Symptoms of a Backdoor.Necurs infection can be subtle and may not always be immediately apparent. Common signs include unusual network activity, slow system performance, unexpected changes to system settings, or the appearance of unfamiliar programs. In some cases, the system may become unstable, or the user may notice that their personal files have been accessed or modified without their permission. However, backdoors are designed to be stealthy, so the absence of these symptoms does not necessarily mean your system is not infected.

How to Remove Backdoor.Necurs

  1. Enter Safe Mode with Networking: Restart your computer and enter Safe Mode. This will help prevent the malware from loading and give you a cleaner environment to work in.
  2. Full Scan with a Reputable Tool: Use a reputable anti-malware tool, such as SpyHunter, to perform a full scan of your system. Ensure your anti-virus and anti-malware software are up-to-date before scanning.
  3. Uninstall Suspicious Programs: Check your list of installed programs for anything that looks suspicious or unfamiliar and uninstall it.
  4. Reset Browsers: Reset your web browsers (such as Chrome, Firefox, Edge) to their default settings to remove any malicious extensions or settings that the malware might have installed.
  5. Reboot and Re-scan: After completing the above steps, reboot your computer and perform another full scan with your anti-malware tool to ensure that the threat has been successfully removed.

Conclusion

Dealing with a Backdoor.Necurs infection requires careful and immediate action to prevent further damage to your system and protect your personal data. By understanding the nature of backdoor threats and following the steps outlined for removal, you can significantly improve your system's security posture. Remember, prevention is key; keeping your software up-to-date, using strong antivirus software, and practicing safe computing habits can help prevent such infections in the future. Always be cautious when clicking on links or downloading software from the internet, and ensure you have a reliable backup of your important files.

SpyHunter Detects & Remove Backdoor.Necurs

File System Details

Backdoor.Necurs may create the following file(s):
# File Name MD5 Detections
1. ecd992a7.tmp 0756b23d32f9ab95a4f0b0682277612e 1,158
2. system.pif ff6e2356def2cf9cd478d006ea23be3e 818
3. KB1357552703.exe 5fcf43009cd3c277bdc04b51f5bc59ff 225
4. 6396cdfd.tmp 8b0cca757e097e452182a8e6c2090e13 156
5. syshost.exe 4a14bd6ca87a5ae21727a79f284f3daa 92
6. 1811b319.tmp 439a2c9dedbc2155d628da4470a4b957 79
7. fedd070d593dddc9.sys 410582586e860d070868120d88b40321 1
More files

Registry Details

Backdoor.Necurs may create the following registry entry or registry entries:
SYSTEM\ControlSet001\Services\syshost32
SYSTEM\ControlSet002\Services\syshost32
SYSTEM\CurrentControlSet\Services\syshost32