Virus.Quervar
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: | 21 |
| First Seen: | September 19, 2012 |
| Last Seen: | November 8, 2021 |
| OS(es) Affected: | Windows |
The detection of Virus.Quervar 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, guidance on how to remove it from your computer.
Table of Contents
What Is Virus.Quervar?
Virus.Quervar is identified as a Trojan-type threat, which is a broad category of malware designed to deceive users into installing it on their systems. Unlike viruses, Trojans do not replicate themselves but can cause significant harm by stealing data, installing additional malware, or providing unauthorized access to the infected computer. The name "Virus.Quervar" itself does not specify a known malware family, but its classification as a Trojan indicates its potential to cause harm through various malicious activities.
How Virus.Quervar Operates
Trojan-type threats like Virus.Quervar typically operate by disguising themselves as legitimate software or files. Once installed, they can perform a wide range of malicious activities, including but not limited to, data theft, keylogging, and the installation of additional malware. These threats often exploit vulnerabilities in software or use social engineering tactics to trick users into executing them. Their operation can be stealthy, making them difficult to detect without proper security software.
Symptoms of Infection
Symptoms of a Virus.Quervar infection can vary widely depending on its specific payload and the intentions of its creators. Common indicators of a Trojan infection include unexpected changes to computer settings, unusual network activity, slowed computer performance, and the appearance of unwanted programs or toolbars. In some cases, the infection may not exhibit obvious symptoms, making regular system scans with updated antivirus software crucial for detection.
How to Remove Virus.Quervar
- Boot into Safe Mode with Networking: This will help prevent Virus.Quervar from loading and give you a cleaner environment to work in. The process to boot into Safe Mode varies depending on your version of Windows.
- Perform a Full Scan with a Reputable Tool: Utilize a well-regarded antivirus or anti-malware tool, such as SpyHunter, to scan your system thoroughly. Ensure the tool is updated to the latest version to maximize its effectiveness against the latest threats.
- Uninstall Suspicious Programs: Go through your installed programs and remove any that you do not recognize or that were installed around the time you suspect the infection occurred.
- Reset Your Browser: If your browser (such as Chrome, Firefox, or Edge) has been affected, resetting it to its default settings can help remove unwanted extensions or settings changes made by the malware.
- Reboot and Re-scan: After taking the above steps, restart your computer and perform another full scan with your antivirus tool to ensure that all components of the malware have been removed.
Conclusion
Removing Virus.Quervar requires a systematic approach to ensure all components of the malware are eliminated from your system. It's essential to stay vigilant and maintain up-to-date security software to protect against future threats. Regularly backing up important data and being cautious when opening email attachments or downloading software from the internet can also help prevent infections. If you're unsure about any part of the removal process, consider seeking help from a professional to ensure your system is thoroughly cleaned and secured.
Aliases
15 security vendors flagged this file as malicious.
| Antivirus Vendor | Detection |
|---|---|
| Panda | Trj/CryptD.B |
| AVG | SHeur4.ALGO |
| Fortinet | W32/Delf.NBG |
| Ikarus | Trojan-Dropper.Win32.Dorifel |
| AhnLab-V3 | Win-Trojan/Dorifel.151552 |
| Microsoft | Virus:Win32/Quervar.B |
| Sophos | W32/Quervar-C |
| TrendMicro | PE_QUERVAR.B-O |
| AntiVir | W32/Quervar.A |
| Comodo | TrojWare.Win32.Dorifel.a |
| BitDefender | Win32.Davion.B |
| Kaspersky | Worm.Win32.Dorifel.a |
| eSafe | Win32.Trojan |
| Avast | Win32:Trojan-gen |
| Symantec | Trojan.Exprez!gen2 |
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. | GQ8XS1.exe | 98914849c66a5dee517f3d379b8faab6 | 2 |
| 2. | tcrkvvfnd.exe | 29c4fd03a325da6b86d19f8c70d32bf0 | 1 |
