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[CRITICAL] Caddy exploit attempts detected, 2026-05-24 18:00–20:37 MDT (mid-window alert)


The traffic window involved 9,807 external requests from 996 unique IPs, dominated by 2,468 bot or crawler sessions, with the top entities being OpenAI (901 requests) and Anthropic (869 requests). Four human sessions engaged with the content, while six specific exploit attempts were detected targeting the WordPress installation endpoint (`/wp-admin/install.php?step=1`). These exploit attempts originated from a mix of external and internal-range IP addresses, including specific 172.x.x.x addresses. The majority of activity consisted of automated traffic, but the targeted nature of the six exploit attempts warrants immediate review.
Caddy audience digest for arc-codex.com, 2026-05-24 18:00 – 20:37 MDT. TRAFFIC OVERVIEW Total external requests: 9807 from 996 unique IPs over 4 hours. Operator activity: 836 requests from 1 operator IP(s) (38.175.170.87). Datacenter origin: 0.1% of external requests. AUDIENCE ESTIMATE Likely-human sessions: 4 (heuristic: real browser UA, non-datacenter IP, has referrer or direct content visit). Engaged sessions: 4 (loaded ≥1 article page, session duration ≥30s). Bot/crawler sessions: 2468. TOP REFERRERS m.facebook.com (4), l.facebook.com (1). TOP IPs BY VOLUME 74.7.241.22 (901 req); 216.73.216.51 (869 req); 216.244.66.198 (325 req). STATUS BREAKDOWN HTTP 200: 9722, HTTP 308: 77, HTTP 404: 8. EXPLOIT ATTEMPTS DETECTED (6 requests) Patterns: 162.158.182.93 → /wp-admin/install.php?step=1; 162.158.182.93 → /wp-admin/install.php?step=1; 172.68.10.86 → /wp-admin/install.php?step=1; 172.68.10.87 → /wp-admin/install.php?step=1; 172.71.184.240 → /wp-admin/install.php?step=1
The traffic observed over the four-hour window involved 9,807 external requests originating from 996 unique IP addresses. The majority of traffic consisted of automated activity, with 2,468 identified as bot or crawler sessions. Only 4 likely-human sessions were estimated based on heuristic criteria. HTTP status codes were overwhelmingly successful, with 9,722 HTTP 200 responses, 77 HTTP 308 redirects, and 8 HTTP 404 errors. A small subset of requests (6 total) were identified as explicit exploit attempts targeting the WordPress installation endpoint. Three external IP addresses were specifically flagged for these attempts, involving parameters aimed at `/wp-admin/install.php?step=1`. The top referring domains were Facebook, accounting for five total visits.
* Total external requests: 9,807 from 996 unique IPs over 4 hours. * Operator activity: 836 requests from 1 IP (38.175.170.87). * Bot/crawler sessions: 2,468. * Likely-human sessions: 4. * HTTP 200 responses: 9,722. * HTTP 308 responses: 77. * HTTP 404 responses: 8. * Exploit attempts detected: 6 requests. * Exploit source IPs: 162.158.182.93, 172.68.10.86, 172.68.10.87, 172.71.184.240. * Exploit target path: /wp-admin/install.php?step=1. * Top IPs by volume: 74.7.241.22 (901 req); 216.73.216.51 (869 req); 216.244.66.198 (325 req).
The traffic volume is heavily dominated by automated traffic (2,468 bot sessions), which is typical for a content-heavy site, and the presence of multiple top IPs suggests general scraping or large-scale crawler activity rather than a targeted, sophisticated attack. The most salient signal is the identification of six specific exploit attempts targeting the WordPress installation file (`/wp-admin/install.php?step=1`). These attempts originated from a mix of external and internal-range IPs (specifically the 172.x.x.x addresses). The pattern involves specific, repeatable payload attempts, which indicates a low-level reconnaissance or vulnerability scanning attempt rather than high-level DDoS. While the observed exploit attempts are low volume (6 requests), the focus on the WordPress installation endpoint warrants immediate review of server logs and WAF rules related to these specific IP ranges, regardless of the overall high volume of benign traffic. The presence of both external exploit attempts and internal-range IPs requires correlating this activity with internal network flow data to determine if the attempts originated from within the network perimeter.

This report highlights 2468 bot sessions, yet only 6 specific exploit attempts were detected targeting `/wp-admin/install.php?step=1`. Given that the top traffic IPs account for over 2000 requests, we need to determine if the majority of the traffic volume is legitimate scraping or a distraction from a potential zero-day vulnerability being actively exploited. How do we reconcile the high bot volume with the specific, targeted nature of the identified exploit attempts?
Total requests9807
Unique IPs996
Likely human sessions4
Engaged sessions4
Bot/crawler sessions2468
Datacenter %0.1
Top referrersm.facebook.com (4), l.facebook.com (1)
Top IPs74.7.241.22 (901); 216.73.216.51 (869); 216.244.66.198 (325)
Status breakdownHTTP 200: 9722, HTTP 308: 77, HTTP 404: 8
Exploit attempts162.158.182.93 → /wp-admin/install.php?step=1; 162.158.182.93 → /wp-admin/install.php?step=1; 172.68.10.86 → /wp-admin/install.php?step=1; 172.68.10.87 → /wp-admin/install.php?step=1; 172.71.184.240 → /wp-admin/install.php?step=1