TROJ_DROPPER.XXTXR

This Trojan arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

Arrival Details

This Trojan arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

Installation

This Trojan drops the following files:

• %Windows%\wc98pp.dll

(Note: %Windows% is the Windows folder, where it usually is C:\Windows on all Windows operating system versions.)

Other System Modifications

This Trojan adds the following registry keys:

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
PROTOCOLS\Handler\ic32pp

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{GUID}\InprocServer32

HKEY_CURRENT_USER\Software\Microsoft\
Internet Explorer\International\CpMRU

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{GUID}\InprocServer32

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Internet Settings\
5.0\Cache\Extensible Cache\
MSHist012018030720180308

It adds the following registry entries:

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
PROTOCOLS\Handler\ic32pp
CLSID = {GUID}

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{GUID}\InprocServer32
ThreadingModel = "Apartment"

HKEY_CURRENT_USER\Software\Microsoft\
Internet Explorer\International\CpMRU
Enable = "1"

HKEY_CURRENT_USER\Software\Microsoft\
Internet Explorer\International\CpMRU
Size = "a"

HKEY_CURRENT_USER\Software\Microsoft\
Internet Explorer\International\CpMRU
InitHits = "100"

HKEY_CURRENT_USER\Software\Microsoft\
Internet Explorer\International\CpMRU
Factor = "20"