alert syslog $EXTERNAL_NET any -> $HOME_NET any (msg:"[BASH] History hiding"; content:"HISTORY"; pcre:"/\s+(HISTFILE|HISTFILESIZE|HISTSIZE)/"; classtype:suspicious-command; program:bash|-bash|sh|-sh; sid:5002303; rev:1;)
-- Main.Sagan-Wiki-Add - 2015-10-21
New revisions of 5002303 will be below...
alert any $EXTERNAL_NET any -> $HOME_NET any (msg:"[BASH] History hiding"; content:"HISTORY"; meta_content: " %sagan%",HISTFILE,HISTFILESIZE,HISTSIZE; classtype:suspicious-command; program:bash|-bash|sh|-sh; sid:5002303; rev:3;)
-- Main.Sagan-Wiki-Add - 2021-4-12