Windows Defender detects and removes this threat.

This threat downloads and runs files on your PC, including a trojan that sends spam emails. It can also steal your email user names and passwords, as well as your FTP credentials, using a plugin detected as PWS:Win32/Fareit.gen!C.

This threat also uses a rootkit and other defensive techniques to avoid detection and removal.

Find out ways that malware can get on your PC.  

VirTool:WinNT/Cutwail.J is the detection for the driver component that is a member of the Win32/Alureon family.

TrojanDropper:Win32/Cutwail.AD is a trojan that drops TrojanDownloader:Win32/Cutwail, a trojan that downloads and executes predefined malicious files.

Trojan:Win32/Cutwail.AK!sys is a trojan that usually arrives in a system with TrojanDownloader:Win32/Cutwail.S. Its primary function is to inject TrojanDownloader:Win32/Cutwail.S into the services.exe process in order to bypass the firewall.

Cutwail is a trojan which is able to download and executes arbitrary files. Downloaded files may be executed from disk or injected directly into another process. Whilst the functionality of the files that are downloaded may change, Cutwail usually downloads a trojan which is able to send spam. Cutwail also employs rootkit and other defensive techniques to avoid detection and removal.

 

VirTool:WinNT/Cutwail.K is a device driver component (rootkit) used by Cutwail malware family.

It contains functionality to modify the system's winlogon.exe.

Backdoor:WinNT/Tofsee.gen!A is a generic detection for variant components of Backdoor:WinNT/Tofsee. WinNT/Tofsee.gen!A is dropped by TrojanDropper:Win32/Tofsee.A and is generally accompanied with Backdoor:Win32/Tofsee.F.

Win32/Sanpec.gen!A is a generic detection for obfuscated samples of password-stealing trojans that target confidential data, such as account information, from the online games "QQ Fantasy Online", "Dream Journey To The West Online", and "Lineage 2".

TrojanDownloader:Win32/Renos.AW is a detection for a trojan that connects to certain websites and downloads other unwanted software and malware, such as Trojan:Win32/FakeSecSen, Trojan:Win32/Bohmini and other Win32/Renos components.

Virus:Win32/Cutwail.F is a member of Win32/Cutwail - a multi-component family of malware that downloads and executes arbitrary files. This functionality is mostly used to install additional Cutwail components, and other malware on an affected machine. In general, the Cutwail family is used to compromise machines and direct them in various ways at the attacker's will, usually for monetary gain. This could include using the affected machine to distribute additional malware, send spam, generate 'pay per click' advertising revenue, harvest e-mail addresses, and break captchas. Its components are varied, but include trojan downloaders and droppers, spammers, rootkits and viruses. Cutwail also employs a rootkit and other defensive techniques to avoid detection and removal.

Virus:Win32/Cutwail.G is a member of Win32/Cutwail - a multi-component family of malware that downloads and executes arbitrary files. This functionality is mostly used to install additional Cutwail components, and other malware on an affected machine. In general, the Cutwail family is used to compromise machines and direct them in various ways at the attacker's will, usually for monetary gain. This could include using the affected machine to distribute additional malware, send spam, generate 'pay per click' advertising revenue, harvest e-mail addresses, and break captchas. Its components are varied, but include trojan downloaders and droppers, spammers, rootkits and viruses. Cutwail also employs a rootkit and other defensive techniques to avoid detection and removal.

Virus:Win32/Cutwail.H is a member of Win32/Cutwail - a multi-component family of malware that downloads and executes arbitrary files. This functionality is mostly used to install additional Cutwail components, and other malware on an affected machine. In general, the Cutwail family is used to compromise machines and direct them in various ways at the attacker's will, usually for monetary gain. This could include using the affected machine to distribute additional malware, send spam, generate 'pay per click' advertising revenue, harvest e-mail addresses, and break captchas. Its components are varied, but include trojan downloaders and droppers, spammers, and viruses. Cutwail also employs a rootkit and other defensive techniques to avoid detection and removal.

 

This particular component is used in conjunction with other Cutwail components to perform Cutwail's payload - to download and execute arbitrary files.

VirTool:WinNT/Cutwail.gen!F is a generic detection for a driver component of Win32/Cutwail - a family of trojans which downloads and executes arbitrary files.

Virus:WinNT/Cutwail.A is a detection for a file that runs other components of the Win32/Cutwail family.

TrojanDownloader:Win32/Cutwail.W is a generic detection for a trojan that downloads other malware from various websites.