TF-1932790 medium

Description

Indicator that identifies a botnet command&control server (C&C). IOC type: Domain that is used for botnet Command&control (C&C). Attributed malware: php.shin_webshell. Confidence: 50. First seen: 2026-09-25 10:25:57 UTC. Reporter: xscon. Tags: Cloudflare, gif, PHP, webshell, WordPress, workers.dev, wp-admin.

Indicators of Compromise (1)

Each indicator is enriched from the IOC database, threat-intel feed corroboration (Threat Hunt) and VirusTotal. Click one to expand.

References (2)

• Malpedia profile ThreatFox IOCs
• ThreatFox IOC page ThreatFox IOCs

  Indicator that identifies a botnet command&control server (C&C). IOC type: Domain that is used for botnet Command&control (C&C). Attributed malware: php.shin_webshell. Confidence: 50. First seen: 2026-09-25 10:25:57 UTC. Reporter: xscon. Tags: Cloudflare, gif, PHP, webshell, WordPress, workers.dev, wp-admin.

• php.shin_webshell — Malware Analysis & Detection | BotEraser
  web:boteraser.com

  php.shin_webshell is a PHP-based backdoor webshell, first documented in public threat intelligence reports around 2019 by Fortinet's FortiGuard Labs. It is categorized as a Web Shell and is typically deployed on compromised web servers to grant attackers persistent remote access.

  2026-09-25 15:07 UTC
• ThreatFox: php.shin_webshell IOCs | SOC Hunt Feed
  web:davidgodwinpratt.com

  Here are specific false positive scenarios and corresponding filters for the ThreatFox: php.shin_webshell detection rule in an enterprise environment: Scenario: Legitimate deployment of a new PHP-based internal dashboard or customer portal by the DevOps team using CI/CD pipelines (e.g., Jenkins, GitLab CI).

  2026-09-25 15:07 UTC
• ThreatFox: php.shin_webshell IOCs | SOC Hunt Feed
  web:davidgodwinpratt.com

  Hunt Hypothesis This hunt detects adversary activity involving the php.shin_webshell web shell, a tool frequently used by threat actors to establish persistent access and execute commands on compromised PHP-based servers. A SOC team should proactively search for these specific IOCs in Azure Sentinel because early identification of this web shell can prevent lateral movement and data ...

  2026-09-25 15:07 UTC
• ThreatFox | h5gdhbptwz.workers.dev
  web:threatfox.abuse.ch

  This IOC is reference the injection webshell using Worker Clouflare, infected using polyglot file php over gif in WordPress.

  2026-09-25 15:07 UTC
• ThreatFox | ue4dgglt0t.workers.dev
  web:threatfox.abuse.ch

  This IOC is reference the injection webshell using Worker Clouflare, infected using polyglot file php over gif in WordPress.

  2026-09-25 15:07 UTC
• Shin_Webshell's Cloudflare Workers Rotation: The C2-in-Plain-Sight ...
  web:www.threatclaw.ai

  Cloudflare Workers, being serverless functions rather than traditional hosting, don't natively execute PHP. When attackers deploy php.shin_webshell to a worker domain , they exploit a different path than the QakBot-style native-C2 model.

  2026-09-25 15:07 UTC
• Cloudflare Workers as Webshell C2: The php.shin_webshell Cluster ...
  web:www.threatclaw.ai

  EDR / endpoint detections (the real kill-chain anchor): The webshell still needs a victim host to invoke. Monitor for outbound HTTP requests from web servers (IIS/Nginx/Apache workers) to workers.dev endpoints that POST or receive image-content responses. Correlate with the surrounding process (php-cgi, w3wp, httpd) command line and child process spawns.

  2026-09-25 15:07 UTC
• Cloudflare Workers as Covert C2: The php.shin_webshell "worker.botnet ...
  web:www.threatclaw.ai

  The php.shin_webshell payload itself is a classic post-exploitation webshell that , once dropped on a target edge server, would blend into routine PHP traffic. This is not a replacement for the proven C2 cohort above — it's an escalation path.

  2026-09-25 15:07 UTC
• Remus Stealer's Weaponized Cloudflare Workers: php.shin_webshell Gif ...
  web:www.threatclaw.ai

  The Cloudflare Workers Webshell Family ( php.shin_webshell ) Three domains — qhvdg6q2ob.workers.dev, 591jemmy.workers.dev, and the previously-flagged ck.erloro.com pattern — are hosting php.shin_webshell with conf:50-85 and tag Cloudflare,gif,PHP. This is not a coincidence of naming.

  2026-09-25 15:07 UTC
• ValleyRAT's Cloudflare Workers Nexus: The Workers-Webshell Co ...
  web:www.threatclaw.ai

  The php.shin_webshell cluster, the js.clearfake domains , and the win.valley_rat C2 are all converging on Cloudflare Workers infrastructure. This suggests a coordinated operation or a shared service provider that's being used by multiple threat actors.

  2026-09-25 15:07 UTC

Only Available for Registered Users. Sign in to view.