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KRVTZ-NET IDS alerts for 2026-04-28

0
Low
Published: Tue Apr 28 2026 (04/28/2026, 00:00:00 UTC)
Source: CIRCL OSINT Feed
Vendor/Project: tlp
Product: clear

Description

KRVTZ-NET IDS alerts for 2026-04-28

AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 05/08/2026, 02:21:55 UTC

Technical Analysis

This threat intelligence report details IDS alerts capturing various network reconnaissance activities on 2026-04-28. Indicators include inbound requests to hidden environment files from multiple IP addresses, a possible SQL injection attempt detected through user agent strings, web crawler scans, and attempts to access sensitive .htpasswd files. Notably, repeated GET requests targeting the Fortigate VPN remote login endpoint (/remote/logincheck) relate to CVE-2023-27997, a known vulnerability. However, there is no evidence of active exploitation or known exploits in the wild. Patch availability for the Fortigate VPN vulnerability is not confirmed in this feed, and no direct remediation guidance is provided.

Potential Impact

The impact is currently low as the alerts primarily indicate reconnaissance and scanning activities without confirmed exploitation or active attacks. The presence of requests related to CVE-2023-27997 suggests potential probing for a known Fortigate VPN vulnerability, but no known exploits in the wild are reported. No direct compromise, data loss, or service disruption is indicated by the data.

Mitigation Recommendations

No specific patch or mitigation is provided in the source data. Organizations should verify that Fortigate VPN systems are updated according to the latest vendor advisories addressing CVE-2023-27997. Monitoring for suspicious inbound requests matching these indicators, especially attempts to access hidden environment files and .htpasswd files, is recommended. Patch status is not yet confirmed—check the vendor advisory for current remediation guidance.

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Technical Details

Uuid
234a16f3-81b8-4d63-bfec-3918de7d64a3
Original Timestamp
1777371248

Indicators of Compromise

Ip

ValueDescriptionCopy
ip57.154.243.43
ET INFO Request to Hidden Environment File - Inbound
ip5.255.102.136
ET INFO Request to Hidden Environment File - Inbound
ip64.62.197.227
ET EXPLOIT Fortigate VPN - Repeated GET Requests to /remote/logincheck (CVE-2023-27997)
ip2a03:cfc0:8000:2e::9532:7419
ET WEB_SERVER Possible SQLi Attempt in User Agent (Inbound)
ip185.177.72.16
ET INFO Request to Hidden Environment File - Inbound
ip145.223.45.151
ET SCAN Exabot Webcrawler User Agent
ip94.177.49.254
ET SCAN Exabot Webcrawler User Agent
ip195.178.110.101
GPL WEB_SERVER .htpasswd access

Threat ID: 69f09f32cbff5d861004acee

Added to database: 4/28/2026, 11:51:14 AM

Last enriched: 5/8/2026, 2:21:55 AM

Last updated: 6/12/2026, 6:24:32 PM

Views: 98

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