Procedure examples

Netwalker's DLL has been embedded within the PowerShell script in hex format.

Netwalker's PowerShell script has been obfuscated with multiple layers including base64 and hexadecimal encoding and XOR-encryption, as well as obfuscated PowerShell functions and variables.

Netwalker can use WMI to delete Shadow Volumes.

The Netwalker DLL has been injected reflectively into the memory of a legitimate running process.

Netwalker has been written in PowerShell and executed directly in memory, avoiding detection.

Operators deploying Netwalker have used batch scripts to retrieve the Netwalker payload.

Netwalker can determine the system architecture it is running on to choose which version of the DLL to use.

Operators deploying Netwalker have used psexec and certutil to retrieve the Netwalker payload.

Netwalker can use Windows API functions to inject the ransomware DLL.

Netwalker can add the following registry entry: HKEY_CURRENT_USER\SOFTWARE\{8 random characters}.

Netwalker's PowerShell script can decode and decrypt multiple layers of obfuscation, leading to the Netwalker DLL being loaded into memory.

Netwalker can encrypt files on infected machines to extort victims.

Netwalker can terminate system processes and services, some of which relate to backup software.

Netwalker can delete the infected system's Shadow Volumes to prevent recovery.

Netwalker can detect and terminate active security software-related processes on infected systems.

Operators deploying Netwalker have used psexec and certutil to retrieve the Netwalker payload.

Operators deploying Netwalker have used psexec to copy the Netwalker payload across accessible systems.

Netwalker can detect and terminate active security software-related processes on infected systems.