Trojan.Downloader.Nistio.A
Threat Scorecard
EnigmaSoft Threat Scorecard
EnigmaSoft Threat Scorecards are assessment reports for different malware threats which have been collected and analyzed by our research team. EnigmaSoft Threat Scorecards evaluate and rank threats using several metrics including real-world and potential risk factors, trends, frequency, prevalence, and persistence. EnigmaSoft Threat Scorecards are updated regularly based on our research data and metrics and are useful for a wide range of computer users, from end users seeking solutions to remove malware from their systems to security experts analyzing threats.
EnigmaSoft Threat Scorecards display a variety of useful information, including:
Popularity Rank: The ranking of a particular threat in EnigmaSoft’s Threat Database.
Severity Level: The determined severity level of an object, represented numerically, based on our risk modeling process and research, as explained in our Threat Assessment Criteria.
Infected Computers: The number of confirmed and suspected cases of a particular threat detected on infected computers as reported by SpyHunter.
See also Threat Assessment Criteria.
| 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.
Table of Contents
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
- Boot your system in Safe Mode with Networking to prevent the malware from loading and to allow you to download and install removal tools.
- 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.
- Uninstall any suspicious programs or applications that may be related to the malware.
- Reset your web browsers, including Chrome, Firefox, and Edge, to their default settings to remove any malicious extensions or add-ons.
- 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
| # | File Name | MD5 |
Detections
Detections: The number of confirmed and suspected cases of a particular threat detected on
infected computers as reported by SpyHunter.
|
|---|---|---|---|
| 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 |