reverse-skills-max: initial public release (restored, redacted, hardened)

vendor-new/analyst-ai-pack/skills/analyzing-rat-command-and-control/scripts/analyst.py

@@ -0,0 +1,81 @@
+#!/usr/bin/env python3
+"""Profile a RAT's capabilities and C2 transport from static strings.
+
+Extracts ASCII/UTF-16LE strings and maps them to capability classes (remote shell, file ops,
+surveillance, persistence, proxy, self-update) and C2 transports (HTTP, TCP, TLS, DNS, messaging).
+Reads bytes statically, defangs endpoints, and executes nothing.
+"""
+from __future__ import annotations
+
+import argparse
+import json
+import re
+import sys
+from pathlib import Path
+
+ASCII_RE = re.compile(rb"[\x20-\x7e]{4,}")
+UTF16_RE = re.compile(rb"(?:[\x20-\x7e]\x00){4,}")
+RE_URL = re.compile(r"https?://[^\s\"'<>]+", re.I)
+
+CAPABILITIES = {
+    "remote_shell": ["cmd.exe", "/c ", "createprocess", "shell", "winexec", "system32\\cmd"],
+    "file_operations": ["upload", "download", "getfile", "putfile", "createfile", "deletefile",
+                        "findfirstfile"],
+    "surveillance": ["screenshot", "bitblt", "getdc", "keylog", "getasynckeystate",
+                     "setwindowshook", "webcam", "capgetdriverdescription", "waveinopen"],
+    "persistence": ["currentversion\\run", "schtasks", "createservice", "startup"],
+    "proxy_relay": ["socks", "proxy", "relay", "portforward", "reverse"],
+    "self_update": ["update", "selfdelete", "rename", "newversion"],
+    "credential_theft": ["cryptunprotectdata", "vault", "password", "credential"],
+}
+
+TRANSPORTS = {
+    "http": ["wininet", "winhttp", "httpsendrequest", "internetopen", "user-agent"],
+    "tcp_raw": ["ws2_32", "wsasocket", "connect", "recv", "send"],
+    "tls": ["schannel", "ssl_", "tls", "openssl"],
+    "dns": ["dnsquery", "dns_", "txt record"],
+    "messaging": ["api.telegram.org", "discord", "pastebin", "steamcommunity"],
+}
+
+
+def _strings(data: bytes) -> str:
+    parts = [m.decode("ascii", "ignore") for m in ASCII_RE.findall(data)]
+    parts += [m.decode("utf-16-le", "ignore") for m in UTF16_RE.findall(data)]
+    return "\n".join(parts)
+
+
+def _defang(s: str) -> str:
+    return s.replace("http", "hxxp").replace(".", "[.]")
+
+
+def profile(path: str) -> dict:
+    blob = _strings(Path(path).read_bytes())
+    low = blob.lower()
+    caps = {c: sorted({n for n in needles if n in low})
+            for c, needles in CAPABILITIES.items()}
+    caps = {c: hits for c, hits in caps.items() if hits}
+    transports = {t: sorted({n for n in needles if n in low})
+                  for t, needles in TRANSPORTS.items()}
+    transports = {t: hits for t, hits in transports.items() if hits}
+    urls = sorted({_defang(u) for u in RE_URL.findall(blob)})[:50]
+    return {
+        "capabilities": caps,
+        "c2_transports": transports,
+        "c2_urls": urls,
+        "capability_count": len(caps),
+        "is_likely_rat": len(caps) >= 3,
+    }
+
+
+def main(argv: list[str] | None = None) -> int:
+    parser = argparse.ArgumentParser(description="Profile RAT C2/capabilities")
+    sub = parser.add_subparsers(dest="cmd", required=True)
+    p = sub.add_parser("profile")
+    p.add_argument("file")
+    args = parser.parse_args(argv)
+    print(json.dumps(profile(args.file), indent=2))
+    return 0
+
+
+if __name__ == "__main__":
+    sys.exit(main())