This type of trojan secretly downloads malicious files from a remote server, then installs and executes the files.
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.
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 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.
Exploit:W32/Ani.C is a trojan that exploits a vulnerability in Windows' animated cursor handling of .ANI files in order to download and install other malware to the system.
These malicious animated cursor (.ANI) files can be hosted on websites and can trigger code execution upon visiting such sites. They can also be embedded in specially crafted emails or attachments within the email that upon reading or previewing can cause the system to execute the code.
This trojan was seen hosted at the following site:
Other sites found also links or loads the malicious .ANI file:
Upon successful execution, this trojan may download other malware via the Internet and execute it on the system. Below are the download sites used:
More information about this malware can be found from our weblog post.
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