Trojan.Enviserv.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: | 56 |
| First Seen: | September 23, 2011 |
| Last Seen: | October 24, 2025 |
| OS(es) Affected: | Windows |
The detection of Trojan.Enviserv.A on your system indicates a potential security threat that requires immediate attention. This report aims to provide you with a comprehensive understanding of the threat, its operational mechanisms, symptoms of infection, and most importantly, steps to remove it from your system.
Table of Contents
What Is Trojan.Enviserv.A?
Trojan.Enviserv.A is identified as a Trojan-type threat. Trojans are malicious programs that disguise themselves as legitimate software, allowing them to bypass security mechanisms and gain unauthorized access to a computer system. Once inside, they can perform a variety of harmful actions, depending on their design and the intentions of their creators. The name "Trojan.Enviserv.A" suggests it is a specific variant of malware, but without more detailed information, its exact capabilities and origins remain undefined.
How Trojan.Enviserv.A Operates
Trojan-type malware, including Trojan.Enviserv.A, typically operates by exploiting vulnerabilities in software or tricking users into installing it. Once installed, it can create backdoors for remote access, allowing attackers to control the infected system, steal sensitive information, or use the system as part of a botnet for malicious activities like spamming or distributed denial-of-service (DDoS) attacks. The operational specifics of Trojan.Enviserv.A, such as how it spreads, the exact nature of its payload, and its communication methods with command and control servers, are not detailed here due to the lack of specific telemetry data.
Symptoms of Infection
Systems infected with Trojan.Enviserv.A or similar malware may exhibit a range of symptoms, though some infections can be asymptomatic, making them harder to detect. Common signs include unusual system behavior, such as unexpected crashes, slow performance, or the appearance of unfamiliar programs or icons. Users might also notice increased network activity, even when no programs are running, or find that their personal files have been encrypted and are being held for ransom. Additionally, pop-ups, unwanted software installations, or changes to browser settings can indicate a malware infection.
How to Remove Trojan.Enviserv.A
- Boot into Safe Mode with Networking: This will limit the malware's ability to launch and make removal easier. To do this, restart your computer, and as it boots up, press the F8 key repeatedly until you see the Advanced Boot Options menu. Select Safe Mode with Networking and press Enter.
- Perform a Full Scan with a Reputable Tool: Utilize a well-regarded anti-malware tool, such as SpyHunter, to scan your system thoroughly. Ensure the tool is updated with the latest definitions before starting the scan.
- Uninstall Suspicious Programs: Go through the list of installed programs on your system and uninstall any that you do not recognize or that were installed around the time the malware was detected.
- Reset Your Browser Settings: Malware often targets browsers, changing settings or installing extensions without your consent. Resetting Chrome, Firefox, Edge, or any other browser you use to their default settings can help remove unwanted changes.
- Reboot and Re-scan: After completing the above steps, restart your computer in normal mode and perform another scan with your anti-malware tool to ensure that the threat has been fully removed.
Conclusion
Dealing with a Trojan infection like Trojan.Enviserv.A requires a combination of immediate action and preventative measures to avoid future infections. By understanding the nature of the threat and following the steps outlined for removal, you can help protect your system and personal data from harm. It's also crucial to maintain good cybersecurity practices, including keeping your operating system and software up to date, using strong, unique passwords, and being cautious when clicking on links or downloading software from the internet.
Aliases
15 security vendors flagged this file as malicious.
| Antivirus Vendor | Detection |
|---|---|
| AVG | Clicker.AUIZ |
| Fortinet | W32/AdClicker.JK!tr |
| Ikarus | Trojan.Win32.Enviserv |
| BitDefender | Gen:Trojan.Heur.JP.fqW@aKb2yIp |
| Avast | Win32:Rootkit-gen [Rtk] |
| NOD32 | a variant of Win32/TrojanClicker.Agent.NOT |
| McAfee | AdClicker-JK |
| AntiVir | TR/ATRAPS.Gen |
| F-Secure | Gen:Trojan.Heur.BDT.PmSfbeIPTook |
| Sophos | Mal/FakeAV-OF |
| BitDefender | Trojan.Generic.KD.367186 |
| NOD32 | a variant of Win32/Adware.BlueFlareAntivirus.B |
| AVG | Generic24.CPHJ |
| Ikarus | Trojan.Msil |
| AhnLab-V3 | Trojan/Win32.FraudPack |
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. | BestSpywareScanner.exe | 8fd0377be0f11f934c7deb52ccd73739 | 14 |
| 2. | sysl32.dll | 40f998b597a7ae9b3b91c5031e2c4d6d | 9 |
| 3. | mcuxjm.exe | 224a78785cffd7a903e553e5a5bedc80 | 3 |
| 4. | 9A3D.exe | bd406062241bbfe5a9976e60623b2d8f | 2 |
| 5. | windowsinstaller.dll | eec115cb256fe8e0e2cad920284b30fb | 2 |
| 6. | ctfmonzoq.exe | b3753b3260aeffe949d1c75033d2324f | 1 |