TROJ_AUTOTI.C

This Trojan may be dropped by other malware.

It executes then deletes itself afterward.

Arrival Details

This Trojan may be dropped by the following malware:

• TROJ_KRYPTIK.JWO

Installation

This Trojan executes then deletes itself afterward.

NOTES:

It may execute specific files depending on the parameter passed to this malware by other component malware using the following command line:

• {malware path}\{malware name}.exe {parameter}

• Parameter: "a"
  File: {malware path}\asius.bat

• Parameter: "d"
  File: {malware path}\damd.bat

• Parameter: "xdc"
  File: {malware path}\xray.bat

• Parameter: "xpd"
  File: {malware path}\xray.bat

• Parameter: "xpp"
  File: {malware path}\xray.bat

However, these files are not dropped by the malware itself and may be dropped by other component malware.

It attempts to create the following environmental variables to store its needed information such as its component file directories:

• pathx=%programfiles%\Windows Media Player\Network Sharing
• filex=Network Media Update.exe
• shellx=,Media Network Sharing
• regx=HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce
• spth1=%windir%\repair\config\
• spth2=%windir%\nview\config\
• rgnn1=Network Sharing Media
• disk_list=C D E F G H I J K L M N O P Q R S T U V W X Y Z
• fuck=echo
• shit=del /f /q
• avp1=%myfiles%\hellenp.tf
• avp2=%myfiles%\hellenm.tf
• avp3=%myfiles%\hellenq.tf
• avp4=%myfiles%\hellenz.tf
• r7g1=HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System
• r7g2=HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System
• u7ac=%windir%\system32\UserAccountControlSettings.exe
• rg_da=reg add
• rg_dwd=/t reg_dword /d 0 /f
• c_cls=cacls
• c_clsx=/p everyone:
• c_bb=copy /b
• fi_xt=if exist
• fi_xxt=if not exist
• symftm=System Volume Information\
• r7guc1=/v ConsentPromptBehaviorAdmin
• r7guc2=/v EnableLUA
• r7guc3=/v PromptOnSecureDesktop

This malware creates the above variables as part of its installation routine. These values can be used by other component malware by calling the assigned environmental variables.

It deletes the following component files:

• %Application Data%\hellenp.tf
• %Application Data%\hellenm.tf
• %Application Data%\hellenq.tf
• %Application Data%\hellenz.tf