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Trojan:W32/Waledac.gen

Classification

Category: Malware

Type: Trojan

Aliases: Trojan:W32/Waledac.gen, Trojan:W32/Waledac, Packed:W32/Waledac

Summary


Trojan:W32/Waledac.gen is a generic detection of variants in the Trojan:W32/Waledac family.

Generic detections are broad patterns of code or behavior that are used by security software to identify programs or files. If you suspect the detected file was incorrectly identified, go to: Removal: Resolve a False Positive.

Removal


Automatic action

Based on the settings of your F-Secure security product, it will either automatically delete, quarantine or rename the detected program or file, or ask you for a desired action.

Resolve a False Positive

Security programs will sometimes unintentionally identify a clean program or file as malicious if its code or behavior is similar to a known harmful program or file. This is known as a False Positive. In most cases, a False Positive is fixed in a subsequent database release. If you suspect the detected file is a False Positive, you can:

Knowledge Base

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About the product

See the manual for your F-Secure product on the Help Center.

Contact Support

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Submit a sample

Submit a file or URL for further analysis.

Technical Details


The following details are general characteristics applicable to many, but not all, variants in the Waledac family.

Propagation

Waledac spreads in an email attachment. Social engineering tricks are used to tempt the victim. Waledac spam frequently uses holidays and news headlines. For example, a fake Barack Obama websites was used as bait during the US 2008 Presidential Elections. Obama spam was also used during the US Presidential Inauguration.

Activity

Waledac is capable of receiving commands from a remote server. Commands include instructions on functions to perform (for example, update malware components or send information from the infected computer).Samples analyzed in the lab also downloaded Rogue antispyware applications. Waledac variants use lists of hardcoded IP addresses to determine where it sends harvested data. More recent variants can also update their lists from the remote command server.

Packers

The packers used by Waledac are different depending on the variant. Cryptor is being used as of January, 2009.