TF-1890945
medium
📛 Threat Title
php.shin_webshell: Domain that is used for botnet Command&control (C&C) wabirana.workers.dev
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: 2026-08-29 06:17:36 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.
domain
wabirana.workers.dev
VT 4 / 91
UrlVoid 2 / 36
IOC database
- Type
- domain
- Value
wabirana.workers.dev- First seen
- Last seen
- Attached to this threat
- Appears in
- 1 threat
- Description
- Domain that is used for botnet Command&control (C&C) attributed to php.shin_webshell
Threat Hunt — feed corroboration
Not present in any configured threat-intel feed.
Flagged by 4 of 91 VirusTotal vendors
| Vendor | Verdict | Detection |
|---|---|---|
| AlphaSOC | malicious | malware |
| Lionic | malicious | malicious |
| alphaMountain.ai | suspicious | suspicious |
| Gridinsoft | suspicious | suspicious |
Details From VirusTotal
Basic Properties
| Registrar | CloudFlare, Inc. |
| TLD | workers.dev |
History
| Creation date | 2019-02-08 20:36 UTC |
| Last analysis | 2026-08-29 10:39 UTC |
| Last modified on VirusTotal | 2026-08-30 08:20 UTC |
| Last WHOIS update | 2025-03-10 15:45 UTC |
References (2)
- Malpedia profile ThreatFox IOCs
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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: 2026-08-29 06:17:36 UTC. Reporter: xscon. Tags: Cloudflare, gif, PHP, webshell, WordPress, workers.dev, wp-admin.
Remediations (10)
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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.
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web:threatfox.abuse.ch
xscon This IOCs indicate injection webshell using workers.dev of cloudflare in WordPress, this work injected file polyglot GIF for work PHP
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web:threatfox.abuse.ch
xscon This IOC is reference the injection webshell using Worker Clouflare, infected using polyglot file php over gif in WordPress.
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web:threatfox.abuse.ch
This IOC is reference the injection webshell using Worker Clouflare, infected using polyglot file php over gif in WordPress.
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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.
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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.
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web:www.threatclaw.ai
Endpoint: Hunt for newly dropped php*.shin* / webshell-named PHP files in web roots (Apache/nginx docroots, Tomcat webapps, IIS inetsrv). Blocking: Rather than IP-based deny, use allowlist-only egress for web traffic or DNS sinkhole worker.dev TLDs at the resolver where business-impact is acceptable.
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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.
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web:www.threatclaw.ai
Overview ThreatFox dropped eight new .workers.dev domains in the last 24 hours, all flagged as php.shin_webshell at confidence level 50, tagged with Cloudflare,gif,PHP. This is the second distinct malware family I've observed abusing Cloudflare's serverless edge platform in a single day — earlier today I covered the AISURU ELF botnet using a Cloudflare Workers endpoint at 160.119.71.120:8080 ...
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web:www.threatclaw.ai
2.A small PHP dispatcher (the shin_webshell) that decodes/re-embeds PHP inside the GIF MIME boundary 3.The workers.dev name acting purely as a free, ephemeral, Cloudflare-issued domain that rotates faster than blocklists ingest it
AI Forensic Analysis
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