Sophos

Troj/Podrop-C

Aliases
  • Trojan-Dropper.Win32.Juntador.e
  • MultiDropper-BN
Category
Type
What to do
Prevalence low high

Summary

 
Affected operating systems Windows
Characteristics
  • Drops more malware
  • Installs itself in the registry
Protection available since 18 November 2005 03:13:17 (GMT)
Detected by All Sophos products
  • Endpoint Security and Control 9.0
  • Small business solutions 4.0

Action

More Information

Troj/Podrop-C is a dropper Trojan for the Windows platform.

Troj/Podrop-C installs adware, malware and legitmate applications on the infected computer.

Troj/Podrop-C installs an adware application, creating the following files:

<Program Files>\Media Access\Info.txt
<Program Files>\Media Access\MediaAccC.dll
<Program Files>\Media Access\MediaAccK.exe
<Program Files>\Media Access\MediaAccess.exe
<Windows temp folder>\win.exe

Troj/Podrop-C creates the following malicious files:

<Windows system folder>\nub-san.exe or xpjava.exe - detected by Sophos as W32/Rbot-Fam
<Windows system folder>\msdirectx.sys - detected by Sophos as Troj/NtRootK-F

Troj/Podrop-C creates the following clean or legitimate application files:

<Windows system folder>\ide21201.vxd

The following registry entries are created to run MediaAccK.exe and win.exe on startup:

HKCU\Software\Microsoft\Windows\CurrentVersion\Run
win.exe
<Windows temp folder>\win.exe

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
Media Access
<Program Files>\Media Access\MediaAccK.exe

The file MediaAccess.exe is registered as a COM object, creating registry entries under:

HKCR\CLSID\(1E5F0D38-214B-4085-AD2A-D2290E6A2D2C)
HKCR\Interface\(00ADA225-EA6C-4FB3-82E8-68189201CCB9)
HKCR\MediaAccess.Installer\
HKCR\TypeLib\(15696AE2-6EA4-47F4-BEA6-A3D32693EFC7)

Registry entries are created under:

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Media Access\
HKLM\SOFTWARE\Media Access\

Troj/Podrop-C provides an uninstall option which can be accessed via the Add or Remove Programs dialog in the Windows Control Panel. The software is listed as "Media Access".

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