ET RETIRED Possible 2015-7547 Malformed Server response

Query · suricata

flow:from_server;
content:"|00 01 00 00 00 00 00 00|"; offset:4; depth:8;
isdataat:2049;
byte_test:1,&,128,2;
byte_test:1,!&,64,2;
byte_test:1,!&,32,2;
byte_test:1,!&,16,2;
byte_test:1,!&,8,2;
byte_test:1,&,2,2;
byte_test:1,!&,1,3;
byte_test:1,!&,2,3;
byte_test:1,!&,4,3;
byte_test:1,!&,8,3;
pcre:"/^[^\x00]+\x00\x00\x01/R";
Raw source ET RETIRED Possible 2015-7547 Malformed Server response · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert udp any 53 -> $HOME_NET any (
    msg:"ET RETIRED Possible 2015-7547 Malformed Server response";
    flow:from_server;
    content:"|00 01 00 00 00 00 00 00|"; offset:4; depth:8;
    isdataat:2049;
    byte_test:1,&,128,2;
    byte_test:1,!&,64,2;
    byte_test:1,!&,32,2;
    byte_test:1,!&,16,2;
    byte_test:1,!&,8,2;
    byte_test:1,&,2,2;
    byte_test:1,!&,1,3;
    byte_test:1,!&,2,3;
    byte_test:1,!&,4,3;
    byte_test:1,!&,8,3;
    pcre:"/^[^\x00]+\x00\x00\x01/R";
    reference:cve,2015-7547;
    classtype:attempted-user;
    sid:2022531; rev:2;
    metadata:created_at 2016_02_17, cve CVE_2015_7547, former_category EXPLOIT, confidence Medium, signature_severity Major, updated_at 2026_07_30;
)

Detection rules belong to the projects that publish them and remain under their own licenses. This site indexes and links to them; it claims no rights in them.