Trojan:Win32/Sirefef.AL
Microsoft security software detects and removes this threat.
This family of malware uses stealth to hide its presence on your PC. Trojans in this family can do different things, including:
- Downloading and running other files
- Contacting remote hosts
- Disabling security features
Members of the family can also change search results, which can generate money for the attackers who use Sirefef.
Variants of Win32/Sirefef may be installed by other malware, including variants of the Trojan:Win32/Necurs family.
For more information, please see the Win32/Sirefef family description.
Trojan:Win64/Sirefef
Windows Defender detects and removes this threat.
This trojan is a 64-bit component of Win32/Sirefef - a family of malware that uses stealth to hide its presence on your computer. Trojans in this family can do different things, including:
- Downloading and running other files
- Contacting remote hosts
- Disabling security features
Members of the family can also change search results, which can generate money for the attackers who use Sirefef.
Trojan:Win32/Sirefef.O
Trojan:Win32/Sirefef.O is a trojan component of the Win32/Sirefef family, and is installed by variants of TrojanDropper:Win32/Sirefef. The trojan provides functionality for other installed Win32/Sirefef rootkit components.
Virus:Win32/Sirefef.gen!C
Microsoft security software detects and removes this threat.
This threat uses stealth to hide itself. Threats in this family can do different things, including:
- Downloading and running other files
- Contacting remote hosts
- Disabling security features
They can also change search results, which can generate money for the malicious hackers who use Sirefef.
Variants of Win32/Sirefef may be installed by other malware, including variants of the Trojan:Win32/Necurs family.
See the Win32/Sirefef family description for more information.
Trojan:Win32/Sirefef.P
Microsoft security software detects and removes this threat.
This family of malware uses stealth to hide itself. Trojans in this family can do different things, including:
- Downloading and running other files
- Contacting remote hosts
- Disabling security features
Members of the family can also change search results, which can generate money for the attackers who use Sirefef.
Variants of Win32/Sirefef may be installed by other malware, including variants of the Trojan:Win32/Necurs family.
See the Win32/Sirefef family description for more information.
Trojan:Win32/Sirefef
Microsoft security software detects and removes this threat.
This threat is a member of the Win32/Sefnit family. This family can hide on your PC and do different things, including:
- Downloading and running other files
- Contacting remote hosts
- Disabling security features
They can also change your search results, which can generate money for malicious hackers.
Variants of Win32/Sirefef might be installed by other malware, including variants of the Trojan:Win32/Necurs family.
Trojan:Win32/Sirefef!cfg
Microsoft security software detects and removes this threat.
This family of malware uses stealth to hide itself. Trojans in this family can do different things, including:
- Downloading and running other files
- Contacting remote hosts
- Disabling security features
Members of the family can also change search results, which can generate money for the attackers who use Sirefef.
Variants of Win32/Sirefef may be installed by other malware, including variants of the Trojan:Win32/Necurs family.
See the Win32/Sirefef family description for more information.
Trojan:Win64/Sirefef.P
Windows Defender detects and removes this threat.
It is a user-mode component of Win32/Sirefef - a multi-component family of malware that meddles with your Internet experience by changing search results and generating pay-per-click advertising revenue for its controllers. The family consists of multiple parts that do different functions, like downloading updates and additional components, hiding existing components, or doing a payload.
Rogue:Win32/Sirefef
Windows Defender Antivirus detects and removes this threat. See the Win32/Sirefef description for more information.
Trojan:Win32/Sirefef.AN
Microsoft security software detects and removes this threat.
This threat is a member of the Win32/Sirefef family. Trojans in this family can do different things, including:
- Changing your search results
- Downloading and running other files
- Contacting remote hosts
- Disabling security features
Sirefef variants can be installed by other malware, including members of the Trojan:Win32/Necurs family.