rule Linux_Exploit_CVE_2021_35395_e3d541a3 {
meta:
author = "Elastic Security"
id = "e3d541a3-b690-4847-b96c-870eb62f5a7b"
fingerprint = "748a864a72258e75ec8bcced462f21f6852b9ecb69c775060036f4d7cf41c17c"
creation_date = "2022-12-16"
last_modified = "2026-05-22"
description = "Exploit code used in the ZeroBot malware"
threat_name = "Linux.Exploit.CVE-2021-35395"
reference_sample = "f9fc370955490bdf38fc63ca0540ce1ea6f7eca5123aa4eef730cb618da8551f"
severity = 100
arch_context = "x86"
scan_context = "file, memory"
license = "Elastic License v2"
os = "linux"
strings:
$bot_a = ";&setPIN=Start+PIN&configVxd=off&resetRptUnCfg=0&peerRptPin="
$bot_b = "submit-url=%2Fwlwps.asp&resetUnCfg=0&peerPin=12345678;"
$bot_c = "application/x-www-form-urlencoded"
condition:
all of them
}