Published Mar 08, 2011 | Updated Sep 15, 2017


Severe |Detected with Windows Defender Antivirus

Aliases: No associated aliases


Virus:Win32/Cutwail.J 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.
To detect and remove this threat and other malicious software that may be installed on your computer, run a full-system scan with an appropriate, up-to-date, security solution. The following Microsoft products detect and remove this threat:
For more information on antivirus software, see
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