Īstaroth logs keystrokes from the victim's machine.

Īstaroth uses certutil and BITSAdmin to download additional malware. Hijack Execution Flow: DLL Search Order HijackingĪstaroth can launch itself via DLL Search Order Hijacking. Īstaroth can abuse alternate data streams (ADS) to store content for malicious payloads.

Īstaroth loads its module with the XSL script parameter vShow set to zero, which opens the application with a hidden window. Īstaroth exfiltrates collected information from its r1.log file to the external C2 server. ĭynamic Resolution: Domain Generation AlgorithmsĪstaroth has used a DGA in C2 communications.

Īstaroth uses a fromCharCode() deobfuscation method to avoid explicitly writing execution commands and to hide its code. Īstaroth collects data in a plaintext file named r1.log before exfiltration. Īstaroth encodes data using Base64 before sending it to the C2 server. Īstaroth uses an external software known as NetPass to recover passwords. Ĭommand and Scripting Interpreter: JavaScriptĪstaroth uses JavaScript to perform its core functionalities. Ĭommand and Scripting Interpreter: Visual BasicĪstaroth has used malicious VBS e-mail attachments for execution. Ĭommand and Scripting Interpreter: Windows Command ShellĪstaroth spawns a CMD process to execute commands. Īstaroth collects information from the clipboard by using the OpenClipboard() and GetClipboardData() libraries. īoot or Logon Autostart Execution: Shortcut ModificationĪstaroth's initial payload is a malicious. Enterprise Layer download view Techniques Used Domainīoot or Logon Autostart Execution: Registry Run Keys / Startup FolderĪstaroth creates a startup item for persistence.

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