Keylogger.Perf.B
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: | 34 |
| First Seen: | December 1, 2010 |
| Last Seen: | October 24, 2025 |
| OS(es) Affected: | Windows |
The detection of Keylogger.Perf.B on your system indicates a potential threat to your security and privacy. This detection name suggests a type of malicious software designed to capture and record keystrokes, potentially leading to the theft of sensitive information such as passwords, credit card numbers, and other personal data.
Table of Contents
What Is Keylogger.Perf.B?
Keylogger.Perf.B is identified as a Trojan-type threat, which means it is a malicious program that disguises itself as legitimate software. Trojans are known for their ability to deceive users into installing them, often by bundling themselves with genuine applications or presenting themselves as useful tools. Once installed, Keylogger.Perf.B could potentially operate in the background, unnoticed by the user, while it performs its malicious activities.
How Keylogger.Perf.B Operates
Keyloggers, by design, are intended to monitor and log keystrokes. This allows the malware to capture a wide range of sensitive information, from login credentials to financial information. The operation of Keylogger.Perf.B likely involves installing a hidden component on the infected system that records keystrokes and possibly other activities, such as screenshots or network traffic, to transmit back to the attacker. The exact mechanisms can vary, but the ultimate goal is to gather valuable data without the user's knowledge or consent.
Symptoms of Infection
Symptoms of a Keylogger.Perf.B infection can be subtle and may not always be immediately apparent. Users might notice unusual system behavior, such as unexpected slowdowns, unusual network activity, or pop-ups and ads that they did not initiate. In some cases, the presence of a keylogger might only become known when the victim discovers that their personal information has been compromised. Regularly monitoring system performance and being vigilant about security can help in early detection.
- Unexplained changes in system settings or performance.
- Appearance of unwanted programs or toolbars.
- Increased network activity when the system is idle.
- Receiving alerts from security software about suspicious activities.
How to Remove Keylogger.Perf.B
- Boot your computer in Safe Mode with Networking to limit the malware's ability to interfere with the removal process.
- Use a reputable anti-malware tool, such as SpyHunter, to perform a full scan of your system. This can help identify and remove all components of the Keylogger.Perf.B malware.
- Manually uninstall any recently installed programs that you do not recognize or that were installed around the time the malware was detected.
- Reset your web browsers (Chrome, Firefox, Edge, etc.) to their default settings to remove any malicious extensions or settings changes made by the malware.
- Reboot your system and perform another full scan with your anti-malware tool to ensure that all traces of the malware have been removed.
Conclusion
The removal of Keylogger.Perf.B requires careful and thorough steps to ensure that all malicious components are eliminated from the system. It's also crucial to take preventive measures to avoid future infections, such as keeping your operating system and software up to date, using strong antivirus protection, and being cautious when opening email attachments or downloading software from the internet. By understanding the nature of Keylogger.Perf.B and taking proactive steps, you can protect your digital identity and maintain a secure computing environment.
Aliases
13 security vendors flagged this file as malicious.
| Antivirus Vendor | Detection |
|---|---|
| Panda | Application/PerfectKeyLog.A |
| Fortinet | W32/Perflog!tr |
| AVG | PSW.Perfect.A |
| Microsoft | TrojanSpy:Win32/PerfectKeylogger_147 |
| Authentium | is a security risk or a backdoor program |
| eWido | Not-A-Virus.Monitor.Win32.Perflogger.g |
| BitDefender | Trojan.Spy.Perfectkeylogger.147 |
| Kaspersky | not-a-virus:Monitor.Win32.Perflogger.g |
| ClamAV | Trojan.Perflog-35 |
| Avast | Win32:Perfloger-R |
| F-Prot | security risk or a backdoor program |
| McAfee | potentially unwanted program Keylog-Perfect |
| CAT-QuickHeal | Monitor.Perflogger.g (Not a Virus) |
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. | Internet Explorerwb.dll | de8e477fc724bd0cb4e302f706bb79d6 | 5 |
