Trojan.Qsbot.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.
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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: | 17 |
| First Seen: | January 9, 2011 |
| OS(es) Affected: | Windows |
The detection of Trojan.Qsbot.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, a step-by-step guide on how to remove it from your system.
Table of Contents
What Is Trojan.Qsbot.A?
Trojan.Qsbot.A, as indicated by its name, falls under the category of Trojan-type malware. Trojans are malicious programs that disguise themselves as legitimate software to gain unauthorized access to a computer system. They can be used for a variety of malicious purposes, including data theft, espionage, and the unauthorized use of system resources. The name "Trojan.Qsbot.A" suggests it could be related to a specific type of malware designed to perform certain malicious functions, but without more specific information, it's crucial to approach it with a broad understanding of Trojan horse malware in general.
How Trojan.Qsbot.A Operates
Trojan.Qsbot.A, like other Trojans, operates by deceiving users into installing it on their systems. This can happen through various means, such as downloading and executing malicious files from the internet, opening malicious email attachments, or exploiting vulnerabilities in software. Once installed, the Trojan can perform a range of malicious activities. It may create backdoors for remote access, steal sensitive information like passwords and credit card numbers, or use the infected computer as part of a botnet for distributed denial-of-service (DDoS) attacks or spamming. The exact operation of Trojan.Qsbot.A would depend on its specific design and the intentions of its creators.
Symptoms of Infection
The symptoms of a Trojan.Qsbot.A infection can vary widely depending on its primary function and the extent of the infection. Common signs include unexpected changes to system settings, unusual network activity, slow system performance, and the appearance of unwanted programs or toolbars in your web browser. Sometimes, the infection may not exhibit noticeable symptoms immediately, making it difficult for users to detect without the aid of security software.
How to Remove Trojan.Qsbot.A
- Boot into Safe Mode with Networking: This will limit the malware's ability to interfere with the removal process. Restart your computer and press the key to enter the boot menu (this key varies by manufacturer but is often F12, F2, or Del). Select the option to boot into Safe Mode with Networking.
- Perform a 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-malware software is updated before running the scan to detect the latest threats.
- Uninstall Suspicious Programs: Go through the list of installed programs on your computer and uninstall any that you do not recognize or that were installed around the time you suspect the infection occurred.
- Reset Your Web Browsers: Resetting Chrome, Firefox, Edge, or any other browser you use can help remove any malicious extensions or settings changes made by the Trojan. You can usually find this option in the browser's settings or preferences area.
- 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 all traces of the malware have been removed.
Conclusion
Removing Trojan.Qsbot.A requires a systematic approach to ensure all components of the malware are eliminated from your system. By following the steps outlined in this report, you should be able to remove the threat and restore your system's security. However, prevention is the best defense against malware infections. Keeping your operating system, software, and security solutions up to date, being cautious with emails and downloads, and regularly scanning your system for malware can significantly reduce the risk of future infections.
Aliases
15 security vendors flagged this file as malicious.
| Antivirus Vendor | Detection |
|---|---|
| Panda | Generic Trojan |
| AVG | Generic20.AZLM |
| Fortinet | W32/Scar.DJCC!tr |
| Ikarus | Trojan.WinNT.Qsbot |
| Sophos | Troj/Qsbot-A |
| Kaspersky | Trojan.Win32.Scar.djcc |
| McAfee | Generic.dx!vlf |
| Ikarus | Trojan-Downloader.Win32.Small |
| AhnLab-V3 | Downloader/Win32.Small |
| Antiy-AVL | Trojan/Win32.Small |
| AntiVir | TR/Kazy.2237.8 |
| Kaspersky | Trojan-Downloader.Win32.Small.kvp |
| eSafe | Win32.GenVariant.Kaz |
| Avast | Win32:Small-NRM |
| McAfee | Artemis!840EC07C3245 |
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. | .exe | b4102dbaa61cff51165803c6307a9223 | 9 |
| 2. | lhlhbk.exe | 840ec07c324525711760915c9d7f87fa | 3 |
| 3. | rundll32.exe | 55aa369cfe4c307d39fca049144965d7 | 2 |
| 4. | ativcoxx32.exe | 54a41fd969371df4071836c47d67fa70 | 1 |