Win32/Wolcape [Threat Name] go to Threat
Win32/Wolcape.A [Threat Variant Name]
| Category | trojan |
| Size | 307200 B |
| Aliases | Backdoor:Win32/Caphaw.G (Microsoft) |
Short description
Win32/Wolcape.A is a trojan that overwrites MBR of all available drives with its own data. Win32/Wolcape.A installs a backdoor that can be controlled remotely. It uses techniques common for rootkits.
Installation
The trojan does not create any copies of itself.
The trojan creates the following files:
- %system%\%variable%
A string with variable content is used instead of %variable% .
The following Registry entries are created:
- [HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce]
- "FlashPlayerUpdate" = "%malwarefilepath%"
The trojan may set the following Registry entries:
- [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System]
- "EnableLUA"=0
The trojan replaces the Master Boot Record with its own code that will gain control of the compromised computer when it restarts.
The trojan may perform operating system restart.
The trojan displays the following dialog boxes:
The trojan creates and runs a new thread with its own program code within the following processes:
- explorer.exe
After the installation is complete, the trojan deletes the original executable file.
Information stealing
The trojan collects the following information:
- operating system version
- installed Microsoft Windows patches
The trojan attempts to send gathered information to a remote machine.
Other information
The trojan quits immediately if any of the following folder(s)/file(s) is/are detected:
- C:\GRLDR
- C:\XELDZ
The trojan acquires data and commands from a remote computer or the Internet.
The trojan contains a list of (3) URLs. The HTTP protocol is used.
It may perform the following actions:
- download files from a remote computer and/or the Internet
- update itself to a newer version
- run executable files
The trojan hides its presence in the system.
The trojan terminates various security related applications.
The trojan may create the following files:
- %temp%\%variable%
A string with variable content is used instead of %variable% .
The file is then executed.