TSPY_ZBOT.TIBAECT
Trojan-Spy.Win32.Zbot.wgke (Kaspersky)
Windows
Threat Type: Trojan Spy
Destructiveness: No
Encrypted:
In the wild: Yes
OVERVIEW
This Trojan Spy arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
However, as of this writing, the said sites are inaccessible.
TECHNICAL DETAILS
446,464 bytes
EXE
Yes
23 Aug 2018
Arrival Details
This Trojan Spy 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 Spy drops the following files:
- %Application Data%\{random folder name 1}\{random filename 1}.exe
- %Application Data%\{random folder name 2}\{random filename 2}.{random file extension 1}
- %Application Data%\{random folder name 2}\{random filename 2}.tmp
- %Application Data%\{random folder name 3}\{random filename 3}.{random file extension 2}
- %User Temp%\tmp{random}.bat
(Note: %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, 7, and 8.. %User Temp% is the current user's Temp folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000, XP, and Server 2003, or C:\Users\{user name}\AppData\Local\Temp on Windows Vista, 7, and 8.)
It creates the following folders:
- %Application Data%\{random folder name 1}
- %Application Data%\{random folder name 2}
- %Application Data%\{random folder name 3}
(Note: %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, 7, and 8.)
Autostart Technique
This Trojan Spy adds the following registry entries to enable its automatic execution at every system startup:
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
{random value 1} = "%Application Data%\{random folder name 1}\{random filename 1}.exe"
Other System Modifications
This Trojan Spy adds the following registry keys:
HKEY_CURRENT_USER\Software\Microsoft\
{random registry key}
It also creates the following registry entry(ies) as part of its installation routine:
HKEY_CURRENT_USER\Software\Microsoft\
{random registry key}
{random value 2} = {hex value}
Other Details
This Trojan Spy connects to the following possibly malicious URL:
- http://www.{BLOCKED}nironworrks.net/adams/agree/ject/craop/file.php
However, as of this writing, the said sites are inaccessible.