Summary
QQPass.QR steals QQ Messenger passwords.
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
Upon execution, this malware drops the following files:
- %programfiles%\Internet Explorer\PLUGINS\system2.jmp - Detected as Trojan-PSW.Win32.QQPass.qr
- %programfiles%\Internet Explorer\PLUGINS\System64.sys - Detected as Trojan-PSW.Win32.QQPass.qr
It creates and modifies the following Registry keys for its autostart mechanism:
Sets these values:
- HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\ShellExecuteHooks {754FB7D8-B8FE-4810-B363-A788CD060F1F} =
Creates these keys:
- HKLM\Software\Classes\CLSID\{754FB7D8-B8FE-4810-B363-A788CD060F1F}
- HKLM\Software\Classes\CLSID\{754FB7D8-B8FE-4810-B363-A788CD060F1F}\InProcServer32
It inject itself to Internet Explorer so that whenever IE starts, the malware is executed as well.
Like any other QQPass trojan, this malware steals QQ Messenger passwords.
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