pysilon

General

Target

https://github.com/mategol/PySilon-malware
Sample

250411-sglwrssq18

Score

10^/10

Malware Config

Targets

- Target
  
  https://github.com/mategol/PySilon-malware
Score

10^/10

pysilon defense_evasion discovery execution persistence privilege_escalation rat stealer upx
- Detect Pysilon
- PySilon
  An open-source RAT written in Python.
  stealer rat pysilon
- Pysilon family
  pysilon
- Enumerates VirtualBox DLL files
- Blocklisted process makes network request
- Boot or Logon Autostart Execution: Active Setup
  Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.
  persistence
- Command and Scripting Interpreter: PowerShell
  Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
  execution
- Downloads MZ/PE file
- Drops file in Drivers directory
- Manipulates Digital Signatures
  Attackers can apply techniques such as changing the registry keys of authenticode & Cryptography to obtain their binary as valid.
- Sets service image path in registry
  persistence
- Event Triggered Execution: Component Object Model Hijacking
  Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.
  persistence privilege_escalation
- Executes dropped EXE
- Loads dropped DLL
- Modifies file permissions
  discovery
- Adds Run key to start application
  persistence
- Checks installed software on the system
  Looks up Uninstall key entries in the registry to enumerate software on the system.
  discovery
- Enumerates connected drives
  Attempts to read the root path of hard drives other than the default C: drive.
- Indicator Removal: File Deletion
  Adversaries may delete files left behind by the actions of their intrusion activity.
  defense_evasion
- Legitimate hosting services abused for malware hosting/C2
- Checks system information in the registry
  System information is often read in order to detect sandboxing environments.
- Drops file in System32 directory
- UPX packed file
  Detects executables packed with UPX/modified UPX open source packer.
  upx
behavioral1