!new! — Hotmail.opk

Based on technical context, here is what "hotmail.opk" likely refers to:

  • Hybrid Analysis / ANY.RUN – Same purpose, often with richer network logs.
  • Search the hash on public repositories – GitHub, MalwareBazaar, MalShare.

    • 4.3 Post‑Execution Forensics

    1. Terminate the session and revert to the pre‑execution snapshot.
    2. Export ProcMon logs and filter for suspicious activities: 
      Procmon /OpenLog hotmail_procmon.pml /SaveAs hotmail_filtered.pml /Filter "Process Name is hotmail.opk"
    3. Analyze network captures (Wireshark) for:

      6. Documentation & Reporting

      1. Record all hashes – MD5, SHA‑1, SHA‑256.
      2. Summarize findings – e.g., “File is a ZIP container holding setup.exe, which on execution writes C:\ProgramData\svchost.exe and contacts 185.62.45.23 over HTTP.”
      3. Include screenshots of key artifacts (ProcMon view, Wireshark flow, decompiled code snippets).
      4. Provide an indicator list – hashes, C2 domains/IPs, file names, registry keys.
      5. Recommend next steps – block the hash in endpoint protection, add network indicators to firewall/IPS, inform users if the file was received via email.
      • 0/60 detections = Clean, likely a legitimate old configuration file.
      • 15+/60 detections = Trojan dropper or backdoor. The file is likely a renamed .exe using the OPK extension to evade detection.
    4. If it’s just a web wrapper (HTML/JS/icons), it’s low risk; if it contains executables, treat as untrusted.
    5. Optionally run dynamic analysis in a sandboxed environment to observe network activity.

    3.2 Conduct a Threat‑Intel Lookup