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TrojanDownloader:Win32/Cutwail.AP
Detected by Microsoft Defender Antivirus
Aliases: Trojan.Win32.Agent2.kxw (Kaspersky) Mal/Pushdo-F (Sophos) Trojan.Agent2.EEZ (VirusBuster) Win32/Kryptik.ZJ (ESET) Cutwail.gen.d (McAfee)
Summary
TrojanDownloader:Win32/Cutwail.AP is a member of Win32/Cutwail - a family of trojans which download and execute arbitrary files. Downloaded files may be executed from disk or injected directly into other processes. While the functionality of the files that are downloaded is variable, Cutwail usually downloads a component, which is used to send spam. Cutwail also employs a rootkit and other defensive techniques to avoid detection and removal.
Manual removal is not recommended for this threat. To detect and remove this threat and other malicious software that may have been installed, run a full-system scan with an up-to-date antivirus product such as the Microsoft Safety Scanner (http://go.microsoft.com/fwlink/?LinkId=212742). For more information, see http://www.microsoft.com/protect/computer/viruses/vista.mspx.