This trojan downloads an additional file from a remote server.
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.
Trojan:W32/HeurFu.gen and a number closely related detections (see More below) identify a file named report_082011-65_pdf.exe, which is being distributed to users in zipped files as email attachments.
On execution, the trojan creates the following temp file:
The trojan-downloader also creates a number of registry entries.
Then it attempts to download a file named blood.exe from a remote server. The downloaded file appears to be a Zbot variant.
A number of closely related detections identify the suspect file report_082011-65_pdf.exe. These detections use the naming format:
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