: Deletes Volume Shadow Copies and disables Windows Startup Repair to prevent system restoration.
: Targets common extensions like .jpg , .pdf , .docx , and .xlsx , appending extensions such as .HA3 .
: Communication with remote servers to retrieve RSA public keys for file encryption. 4. Mitigation and Defense
: Often delivered via a PowerShell stager (e.g., Roduk or Polock ) that downloads Base64-encoded bytes and stores them in memory. Injection Process :
The file is most commonly associated with reflective DLL injection , a technique used by both legitimate security tools and advanced malware to load a library into memory without using the standard Windows API. Historically, this specific filename has appeared as a critical component in El-Polocker ransomware and is frequently discussed in the context of Sodinokibi and Gandcrab infection chains. 1. Executive Summary
: Ensure systems are patched against known vulnerabilities (e.g., WebLogic exploits) often used to deliver these loaders.
The payload ( reflect.dll ) is injected into a target process, such as C:\Windows\explorer.exe . : Once active, it typically:
: Disabling of "System Restore" and "Automatic Startup Repair".