This type of worm is embedded in an email attachment, and spreads using the infected computer's emailing networks.
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.
Email-Worm:W32/Bagle.GE attempts to disable security related software. It also hides itself and other Bagle components using rootkit techniques.
When Bagle.GE is run, it creates a directory named 'hidires' in the user's 'Application Data' folder. It copies itself as:
The trojan also drops the following driver file to the same folder:
The trojan installs the following registry launchpoint as a string value:
Bagle.GE tries to disable several AV and other security related software.
Bagle.GE loads a kernel-mode driver (m_hook.sys) that it uses to hide itself and another Bagle related malware, Email-Worm:W32/Bagle.GF.The driver is able to hide the following items:
When it loads it replaces the following function pointers from the system service table:
The driver is configured by the user-mode component (hidr.exe). The following data is sent to define items that will be hidden:
List of hidden processes:
List of hidden files or directories:
List of hidden registry keys:
List of hidden registry values:
The user-mode component will also send information about image names that will be considered as trusted and will not be affected by any of the hooks:
The file hiding code is somewhat limited. It is only able to hide a single file from each directory. The NtCreateFile hook is special. Its sole purpose is to delete any security related files when they are opened. This list is also sent by the user-mode component and consists of the following items:
In addition, the driver contains code that will prevent certain security related processes and kernel-mode modules from running. However, this code is not yet in use.
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