Chango
Summary
This is a Visual Basic Script trojan that has been spammed as "Men & Women.html".
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:
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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.
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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.
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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
Part of the code is encrypted and decrypts on the fly. If a user open this file Chango first checks the Visual Basic Script version. If it is more than 4 then it creates two files: "C:\WINDOWS\LOGOS.SYS" and "C:\WINDOWS\LOGOW.SYS". Those files are scriptlet objects and contain the string "TROJAN.Chango".
After that the trojan attempts to create in the Windows startup directory of English, Spanish and Portuguese environments the file "TROJAN.CHANGO.HTM".
Further every time the a system is rebooted it will run the IE and open "TROJAN.CHANGO.HTM" that looks like:
Chango doesn't contain any destructive payload.