KRVTZ-NET IDS alerts for 2026-04-23
KRVTZ-NET IDS alerts for 2026-04-23
AI Analysis
Technical Summary
This event captures IDS alerts indicating reconnaissance and scanning activities on 2026-04-23, involving multiple suspicious IP addresses. Notably, some IPs attempted to exploit a known Fortigate VPN vulnerability (CVE-2023-27997) through repeated GET requests to the /remote/logincheck endpoint. Other indicators include unusual user-agent strings and scanning behavior. No confirmed exploitation or active threat campaigns are documented. Patch availability for the Fortigate VPN vulnerability is not confirmed in this report; users should consult Fortinet advisories. The data represents observational network activity rather than confirmed attacks.
Potential Impact
The impact is limited to detection of reconnaissance and scanning activity without evidence of successful exploitation or active attacks. The presence of attempts targeting a known Fortigate VPN vulnerability suggests potential interest by threat actors, but no confirmed compromises or widespread exploitation are reported. The low severity rating reflects the informational nature of these alerts and absence of confirmed threat actor activity or damage.
Mitigation Recommendations
No specific mitigation guidance or patches are provided in this report. Since no active exploitation or confirmed threat campaigns are reported, no urgent remediation is indicated. Organizations using Fortigate VPN devices should verify and apply vendor advisories and patches for CVE-2023-27997 as appropriate. Continuous monitoring for suspicious login attempts and scanning activity is recommended. Patch status is not confirmed here; consult Fortinet's official advisories for current remediation status.
Indicators of Compromise
- ip: 65.49.1.132
- ip: 47.251.170.102
- ip: 2001:470:1:332::2
- ip: 129.150.44.188
- ip: 45.148.10.166
- ip: 170.106.161.38
- ip: 43.166.253.58
KRVTZ-NET IDS alerts for 2026-04-23
Description
KRVTZ-NET IDS alerts for 2026-04-23
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This event captures IDS alerts indicating reconnaissance and scanning activities on 2026-04-23, involving multiple suspicious IP addresses. Notably, some IPs attempted to exploit a known Fortigate VPN vulnerability (CVE-2023-27997) through repeated GET requests to the /remote/logincheck endpoint. Other indicators include unusual user-agent strings and scanning behavior. No confirmed exploitation or active threat campaigns are documented. Patch availability for the Fortigate VPN vulnerability is not confirmed in this report; users should consult Fortinet advisories. The data represents observational network activity rather than confirmed attacks.
Potential Impact
The impact is limited to detection of reconnaissance and scanning activity without evidence of successful exploitation or active attacks. The presence of attempts targeting a known Fortigate VPN vulnerability suggests potential interest by threat actors, but no confirmed compromises or widespread exploitation are reported. The low severity rating reflects the informational nature of these alerts and absence of confirmed threat actor activity or damage.
Mitigation Recommendations
No specific mitigation guidance or patches are provided in this report. Since no active exploitation or confirmed threat campaigns are reported, no urgent remediation is indicated. Organizations using Fortigate VPN devices should verify and apply vendor advisories and patches for CVE-2023-27997 as appropriate. Continuous monitoring for suspicious login attempts and scanning activity is recommended. Patch status is not confirmed here; consult Fortinet's official advisories for current remediation status.
Technical Details
- Uuid
- 6061a3af-10dd-41f5-a360-81e0e819473f
- Original Timestamp
- 1776937089
Indicators of Compromise
Ip
| Value | Description | Copy |
|---|---|---|
ip65.49.1.132 | ET EXPLOIT Fortigate VPN - Repeated GET Requests to /remote/logincheck (CVE-2023-27997) | |
ip47.251.170.102 | TGI HUNT Curl to Bare IP Address | |
ip2001:470:1:332::2 | ET EXPLOIT Fortigate VPN - Repeated GET Requests to /remote/logincheck (CVE-2023-27997) | |
ip129.150.44.188 | ET HUNTING Suspicious User-Agent Observed (Mozilla/5.0 (Windows NT XX.X Win64 x64) AppleWebKit/XXX.XX) | |
ip45.148.10.166 | ET SCAN Suspicious User-Agent Containing Security Scan/ner Likely Scan | |
ip170.106.161.38 | ET USER_AGENTS User-Agent (_TEST_) | |
ip43.166.253.58 | ET USER_AGENTS User-Agent (_TEST_) |
Threat ID: 69e9eb7f87115cfb68f9c85e
Added to database: 4/23/2026, 9:50:55 AM
Last enriched: 5/8/2026, 2:22:50 AM
Last updated: 6/7/2026, 5:52:17 AM
Views: 66
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