TSPY_ZBOT.NJY

This spyware 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 spyware 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 spyware drops the following copies of itself into the affected system:

• %User Profile%\Application Data\{random1}\{random}.exe
• %Application Data%\{random1}\{random}.exe (Windows 7 only)

(Note: %User Profile% is the current user's profile folder, which is usually C:\Documents and Settings\{user name} on Windows 2000, XP, and Server 2003, or C:\Users\{user name} on Windows Vista and 7.. %Application Data% is the current user's Application Data folder, which is usually C:\Documents and Settings\{user name}\Application Data on Windows 2000, XP, and Server 2003, or C:\Users\{user name}\AppData\Roaming on Windows Vista and 7.)

It creates the following folders:

• %User Profile%\Application Data\{random1}
• %User Profile%\Application Data\{random2}
• %User Profile%\Application Data\{random3}
• %Application Data%\{random1} (Windows 7 only)
• %Application Data%\{random2} (Windows 7 only)
• %Application Data%\{random3} (Windows 7 only)

(Note: %User Profile% is the current user's profile folder, which is usually C:\Documents and Settings\{user name} on Windows 2000, XP, and Server 2003, or C:\Users\{user name} on Windows Vista and 7.. %Application Data% is the current user's Application Data folder, which is usually C:\Documents and Settings\{user name}\Application Data on Windows 2000, XP, and Server 2003, or C:\Users\{user name}\AppData\Roaming on Windows Vista and 7.)

Autostart Technique

This spyware adds the following registry entries to enable its automatic execution at every system startup:

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
{random} = ""%User Profile%\Application Data\{random1}\{random}.exe""

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
{random} = "%Application Data%\{random1}\{random}.exe" (Windows 7 only)

Other System Modifications

This spyware adds the following registry keys:

HKEY_CURRENT_USER\Software\Microsoft\
{random}

Dropping Routine

This spyware drops the following files:

• %User Profile%\Application Data\{random2}\{random}.{random}
• %User Profile%\Application Data\{random3}\{random}.{random}
• %Application Data%\{random2}\{random}.{random} (Windows 7 only)
• %Application Data%\{random3}\{random}.{random} (Windows 7 only)

(Note: %User Profile% is the current user's profile folder, which is usually C:\Documents and Settings\{user name} on Windows 2000, XP, and Server 2003, or C:\Users\{user name} on Windows Vista and 7.. %Application Data% is the current user's Application Data folder, which is usually C:\Documents and Settings\{user name}\Application Data on Windows 2000, XP, and Server 2003, or C:\Users\{user name}\AppData\Roaming on Windows Vista and 7.)

Other Details

This spyware connects to the following possibly malicious URL:

• http://{BLOCKED}els.md/{BLOCKED}ages/file.php|file=x.bin
• http://www.{BLOCKED}enie.kz/images/file.php|file=x.bin
• http://{BLOCKED}ay86.com/wp-content/themes/colorway/file.php|file=x.bin
• http://{BLOCKED}albirikim.com/wp-content/themes/koydernek/wpg.php