Threat Descriptons

Trojan-Spy:W32/Papras.EL

Classification

Category :

Malware

Type :

Trojan-Spy

Aliases :

Trojan-Dropper.Win32.Agent.butu

Summary

A trojan that secretly installs spy programs, such as keyloggers.

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

Trojan-Spy:W32/Papras.EL is a dll file that is loaded using rundll32.exe. It is observed to steal sensitive data such as user ID, password and network socket.

Execution

Upon execution, it creates the following files:

  • %localsettings%\History\desktop.ini
  • %cookies%\index.dat

However, these files are removed after execution To mark its presence in the system, it creates mutexes such as these:

  • {9a74cd60-a13f-3d92-94c9-080de6e37ac7}
  • Local\{eb3c901d-d2d8-b857-a1ca-659e7b8cdf80}

Registry

The malware creates these registry keys:

  • HKCU\SOFTWARE\AppDataLow
  • HKCU\SOFTWARE\AppDataLow\{60ecdd11-f33c-356b-d5ce-d9e2cf307364}

The registry key HKCU\SOFTWARE\AppDataLow\{60ecdd11-f33c-356b-d5ce-d9e2cf307364} will see the following values added to it:

  • k1 = 1604692393 (random numbers)
  • k2 = 1074269778 (random numbers)
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