Trojan:Win32/Sirefef.AN
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:
Ranking: 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: | 90 % (High) |
| Infected Computers: | 16 |
| First Seen: | November 7, 2012 |
| Last Seen: | April 23, 2022 |
| OS(es) Affected: | Windows |
Trojan:Win32/Sirefef.AN is a Trojan with rootkit functionalities that conceals itself on the infected computer system to bypass the detection and elimination by anti-virus programs. Therefore, Trojan:Win32/Sirefef.AN is hard to find and uninstall from the affected computer. Trojan:Win32/Sirefef.AN takes over the compromised Internet browser and leads to irritating diversions to dubious advertisement websites created by cybercriminals to earn money from click fraud and raised traffic. The names of the websites used by Trojan:Win32/Sirefef.AN may differ.
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