Trojan-Downloader:W32/Streedom.A is a file embedded within Trojan:W97M/Streedom.A. Trojan-Downloader:W32/Streedom.A downloads and runs a file from a website.
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:
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First check if your F-Secure security program is using the latest updates, then try scanning the file again.
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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.
Trojan-Downloader:W32/Streedom.A arrives to the system as an embedded binary executable file from within a malicious .RTF file, which is detected as Trojan:W97M/Streedom.A.
Upon execution of the embedded file, it will drop a copy of itself in the following path and file name:
To enable automatic execution upon boot up, Trojan-Downloader:W32/Streedom.A adds the following auto start registry entry:
Trojan-Downloader:W32/Streedom.A creates this file and then deletes it again:
Note: this is a hard coded string
Trojan-Downloader:W32/Streedom.A uses the default Internet Browser installed on the system to download Trojan-Dropper:W32/Streedom.A. In order to do this, it creates a process for the browser and then injects itself. Afterwards, it will remotely trigger a thread that contains the main payload, which is the download routine.
Trojan-Downloader:W32/Streedom.A will only start downloading if an Internet Connection is available. Internet availability is checked by establishing a connection to the following site:
If an Internet connection is unavailable, it will infinitely try establishing a connection every 10000 ms or 10 seconds.
Here is the URL from where it downloads Trojan-Dropper:W32/Streedom.A:
The downloaded file is saved and executed in the following path and filename:
The creator of this malware uses message boxes to debug this program.
This message box for instance, shows up when it fails to launch a process of the default browser:
Here are more of the other message boxes:
This malware has been packed with FSG 2.0.
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