rule Linux_Exploit_CVE_2020_25506_ac99289a {
meta:
author = "Elastic Security"
id = "ac99289a-aecf-4378-8a8f-acd4e7068374"
fingerprint = "6718908e59601e8fb9f2c291d5244f8516a5709e9bf06889220fdca38298a58a"
creation_date = "2022-12-16"
last_modified = "2026-05-22"
description = "Exploit code used in the ZeroBot malware"
threat_name = "Linux.Exploit.CVE-2020-25506"
reference_sample = "f9fc370955490bdf38fc63ca0540ce1ea6f7eca5123aa4eef730cb618da8551f"
severity = 100
arch_context = "x86"
scan_context = "file, memory"
license = "Elastic License v2"
os = "linux"
strings:
$bot_a = "cgi-bin/system_mgr.cgi?C1=ON&cmd=cgi_ntp_time&f_ntp_server=`"
$bot_b = "POST" nocase
condition:
all of them
}