Trojan-Dropper:W32/CosmicDuke

Classification

Malware

Trojan-Dropper

W32

CosmicDuke, MiniDuke

Summary

Trojan-Dropper:W32/CosmicDuke steals information from an infected system using keylogging, screen captures and stealing file and clipboard data. Harvested data is forwarded to a remote server via FTP.

Automatic action

Based on the settings of your F-Secure security product, it will either move the file to the quarantine where it cannot spread or cause harm, or remove it.

Suspect a file is incorrectly detected (a False Positive)?

A False Positive is when a file is incorrectly detected as harmful, usually because its code or behavior resembles known harmful programs. A False Positive will usually be fixed in a subsequent database update without any action needed on your part. If you wish, you may also:

  • Check for the latest database updates

    First check if your F-Secure security program is using the latest detection database updates, then try scanning the file again.

  • Submit a sample

    After checking, if you still believe the file is incorrectly detected, you can submit a sample of it for re-analysis.

    NOTE If the file was moved to quarantine, you need to collect the file from quarantine before you can submit it.

  • Exclude a file from further scanning

    If you are certain that the file is safe and want to continue using it, you can exclude it from further scanning by the F-Secure security product.

    Note You need administrative rights to change the settings.

For more Support

Knowledge Base

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User Guide

See the user guide for your product on the Help Center.

Contact Support

Chat with or call an expert for help.

Submit a sample

Submit a file or URL for further analysis.

Technical Details

The CosmicDuke trojan-dropper appears to be spread in 'bait' image, document and PDF files, which contain an exploit or a buried Windows executable program. Once the bait file is opened, the exploit or program is launched and begins to harvest data from the infected machine.

In addition to its information-stealing activities, CosmicDuke is notable for sharing code with MiniDuke, a malware known to have been used to attack various NATO and European government agencies in February 2013.

For more information, see Labs Weblog post:CosmicDuke: Cosmu With a Twist of MiniDuke or download the whitepaper.