Summary
This type of worm is embedded in an email attachment, and spreads using the infected computer's emailing networks.
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
Email-Worm:W32/Mimail.G is a worm that propagates in infected email message attachments. The worm is also capable of launching Denial of Service (DoS) attacks on certain websites.
Mimail.G closely resembles the Mimail.C variant.
Mimail.G was found on 2 November, 2003.
Installation
Mimail.G is almost identical to the Mimail.C variant, except in the following points:
1. Mimail.G worm's file is 10784 bytes long, compressed with UPX file compressor and the unpacked file's size is 22560 bytes.
2. The worm installs itself to Windows folder as SYSLOAD32.EXE file and creates a startup key in the Registry:
- [HKLM\Software\Microsoft\Windows\CurrentVersion\Run] "SystemLoad32" = "%windir\sysload32.exe"
where %windir% is a Windows directory name.
3. The worm performs a DoS attack on the following sites:
- mysupersales.com
- www.mysupersales.com
4. The worm spreads itself in the following message:
From: john@ Subject: don't be late! Body: Will meet tonight as we agreed, because on Wednesday I don't think I'll make it, so don't be late. And yes, by the way here is the file you asked for. It's all written there. See you. Attachment: readnow.zip
The attachment is a ZIP archive that contains the worm's executable file (READNOW.DOC.SCR).
5. Mimail.G does not have Mimail.C's spying functionality.
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