Threat Database Trojans Trojan.Downloader.Nistio.A

Trojan.Downloader.Nistio.A

By CagedTech in Trojans
Published:
Last updated:

Threat Scorecard

Threat Level: 80 % (High)
Infected Computers: 93
First Seen: June 25, 2012
Last Seen: July 19, 2025
OS(es) Affected: Windows

The detection of Trojan.Downloader.Nistio.A on your system indicates a potential security threat that requires immediate attention. This type of malware is designed to download and install additional malicious software on your computer, which can lead to a range of problems, including data theft, system crashes, and unauthorized access to your personal information.

What Is Trojan.Downloader.Nistio.A?

Trojan.Downloader.Nistio.A is a type of Trojan horse malware that is designed to deceive users into installing it on their systems. Once installed, it can download and execute additional malware, allowing attackers to gain control over your computer and steal sensitive information. The name "Trojan.Downloader.Nistio.A" is a designation used by security software to identify this particular threat, but it does not provide information about the specific family or origin of the malware.

How Trojan.Downloader.Nistio.A Operates

Trojan.Downloader.Nistio.A operates by exploiting vulnerabilities in your system or tricking you into installing it. Once installed, it can connect to a command and control server to download and install additional malware, including viruses, spyware, and ransomware. This malware can then be used to steal your personal information, such as login credentials, credit card numbers, and sensitive data. It can also be used to take control of your system, allowing attackers to use your computer to spread malware to other systems or to engage in other malicious activities.

Symptoms of Infection

The symptoms of a Trojan.Downloader.Nistio.A infection can vary, but they may include slow system performance, unexpected pop-ups or ads, and unfamiliar programs or icons on your desktop. You may also notice that your system is crashing or freezing frequently, or that your antivirus software is detecting and blocking malicious activity. In some cases, you may not notice any symptoms at all, which is why it's essential to run regular virus scans and keep your security software up to date.

How to Remove Trojan.Downloader.Nistio.A

  1. Boot your system in Safe Mode with Networking to prevent the malware from loading and to allow you to download and install removal tools.
  2. Run a full scan of your system using a reputable anti-malware tool, such as SpyHunter, to detect and remove all instances of the malware.
  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 add-ons.
  5. Reboot your system and run another scan to ensure that all instances of the malware have been removed.

Conclusion

Removing Trojan.Downloader.Nistio.A from your system requires careful attention to detail and a thorough understanding of the malware removal process. By following the steps outlined above and staying vigilant, you can help protect your system and your personal information from this and other types of malware. Remember to always keep your security software up to date and to run regular virus scans to detect and remove any potential threats before they can cause harm.

Aliases

15 security vendors flagged this file as malicious.

Antivirus Vendor Detection
AVG Dropper.Generic_c.MQJ
Fortinet W32/Harnig.CF!tr
Ikarus Trojan-Downloader.Win32.Genome
AhnLab-V3 Win-Trojan/Nistio.61466
Antiy-AVL Trojan/win32.agent.gen
AntiVir TR/Rogue.5386514
Sophos Troj/Harnig-CF
Kaspersky Trojan-Downloader.Win32.Genome.dbnq
Symantec WS.Reputation.1
F-Prot W32/Downldr2.IYHY
McAfee Downloader.a!m
CAT-QuickHeal TrojanDownloader.Nistio.a.cw5
Fortinet W32/Downloader_x.FSB!tr
AhnLab-V3 Dropper/Malware.60840
BitDefender DeepScan:Generic.NSIS.Downloade.D1F6C950

File System Details

Trojan.Downloader.Nistio.A may create the following file(s):
# File Name MD5 Detections
1. wareg51.exe 8fc3b1d94cf7e566d3c020a3aba834bf 44
2. spscom.exe 4341ce999aa1a344f16accf7443f449b 10
3. PresentationHostb.exe 3a2d9938cfe386b333634c561b884e64 4
4. ntoskrnla.exe 04d9df0d44ea0f24f3c7d05688de1c77 3
5. Dismb.exe 7bb31bcec9c0c7d448b622922030b98a 1
6. djsnetcn.exe 8fe7d90d4c6ca8ea2d6739506cb4a0c1 1