Threat Descriptions

Sadhound

Classification

Category :

Malware

Type :

Backdoor

Platform :

W32

Aliases :

Sadhound

Summary

On January 25th a new backdoor known as Sadhound has been spammed in emails with subject 'I Miss You'. Sadhound is not a worm and does not spread by itself.

Removal

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.

Technical Details

Sadhound drops a text file in Windows Temp folder and opens it with Notepad. The text looks as follow: 

There's no
special reason
for sending
this to you,
except that...
I was feeling
a little lonely,
and when I asked myself
what I seemed to bemissing the most,the answerturned out to be

...you.
I Miss You

F-Secure Anti-Virus detects Sadhound with the existing updates as a dropper.