TSPY_COMFRA.A
Trojan-Spy.Zbot (Ikarus)
Windows 2000, Windows Server 2003, Windows XP (32-bit, 64-bit), Windows Vista (32-bit, 64-bit), Windows 7 (32-bit, 64-bit)
![](/vinfo/imgFiles/legend.jpg)
Threat Type: Spyware
Destructiveness: No
Encrypted:
In the wild: Yes
OVERVIEW
This spyware arrives as an attachment to email messages spammed by other malware/grayware or malicious users.
It executes then deletes itself afterward.
TECHNICAL DETAILS
Arrival Details
This spyware arrives as an attachment to email messages spammed by other malware/grayware or malicious users.
Installation
This spyware drops the following copies of itself into the affected system:
- %Application Data%\Microsoft\{3 random char}{variable}.exe
(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 and 7.)
It executes then deletes itself afterward.
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
{3 random char}{variable}.exe = "%Application Data%\Microsoft\{3 random char}{variable}.exe"
Other System Modifications
This spyware adds the following registry keys:
HKEY_CURRENT_USER\Software\Microsoft\
Office\Common\{random key}
HKEY_CURRENT_USER\Software\Microsoft\
Office\Common\{random key}\
{random key}PS
HKEY_CURRENT_USER\Software\Microsoft\
Office\Common\{random key}\
{random key}RS
HKEY_CURRENT_USER\Software\Microsoft\
Office\Common\{random key}\
{random key}SS
It adds the following registry entries:
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Internet Settings
GlobalUserOffline = "0"
Other Details
This spyware connects to the following possibly malicious URL:
- {BLOCKED}.{BLOCKED}.86.214:8080
- {BLOCKED}.{BLOCKED}.6:8080
- {BLOCKED}.{BLOCKED}.183.196:8080
- {BLOCKED}.{BLOCKED}.0.5:8080
- {BLOCKED}.{BLOCKED}.86.214:8080
- {BLOCKED}.{BLOCKED}.6:8080
- {BLOCKED}.{BLOCKED}.66.179:8080
- {BLOCKED}.{BLOCKED}.232.235:8080
- {BLOCKED}.{BLOCKED}.185.107:8080
- {BLOCKED}.{BLOCKED}.183.196:8080
- {BLOCKED}.{BLOCKED}.210.86:8080
- {BLOCKED}.{BLOCKED}.0.5:8080
- {BLOCKED}.{BLOCKED}.156.20:8080
- {BLOCKED}.{BLOCKED}.62.18:8080
- {BLOCKED}.{BLOCKED}.191.158:8080
NOTES:
where variable is any of the following:
- windows
- video
- update
- system
- sock
- share
- setup
- serial
- mgr32
- error
- edit32
- crypt
- config
- common
- cap32
- boot
- bios
- audio
- api32