Malicious code in anthropic-shared-logger (npm)
-= Per source details. Do not edit below this line.=-
This package impersonates Anthropic's internal namespace and self-describes as 'Full RCE PoC - Alex Birsan Style'. Its package.json declares a postinstall hook that, on every npm install, fetches the installer's public IP from api.ipify.org, runs id || ver && whoami && hostname via child_process.exec, and POSTs the hostname, current working directory, USERDOMAIN/COMPANY environment variables, IP address, and command output to a hardcoded Interactsh OOB endpoint at lszakfghwnvxspyfcmaabd1css99rnq3w.oast.fun over plain HTTP. The combination of namespace impersonation, automatic install-time shell execution, and host reconnaissance exfiltration to attacker-controlled out-of-band infrastructure is a canonical Birsan-style dependency confusion attack. Any build system that mis-resolves this name to the public registry leaks identity and host data to the attacker, enabling targeted follow-on compromise.
왜 이 VPI인가 (설명가능 · 실험적)
VPI 산정 기준
| 영향도(기본값(정보 없음)) | 55.00 |
| 악용 신호(추가 악용신호 없음) | ×1.00 |
| VPI | 55.00 |
VPI 공식 vpi-v1 기준