ET ATTACK_RESPONSE Possible WebShell Upload Attempt via Directory Traversal M2

SID: 2038638Rev: 10 viewsHistory

Sourceet/open

CreatedAugust 29, 2022

UpdatedAugust 29, 2022

Classificationattempted-admin

alert http any any -> [$HOME_NET,$HTTP_SERVERS] any (msg:"ET ATTACK_RESPONSE Possible WebShell Upload Attempt via Directory Traversal M2"; flow:to_server,established; http.method; content:"POST"; http.request_body; content:"./"; content:"filename|22|"; fast_pattern; pcre:"/^.{1,5}\x22[^\x22]+(\.{1,2}\/)+(\w+\/?)+\.(jsp|aspx?|php)\x22/R"; classtype:attempted-admin; sid:2038638; rev:1; metadata:created_at 2022_08_29, deployment Perimeter, deployment Internal, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_08_29, mitre_tactic_id TA0003, mitre_tactic_name Persistence, mitre_technique_id T1505, mitre_technique_name Server_Software_Component; target:dest_ip;)

Metadata

created at2022_08_29

deploymentInternal

confidenceHigh

signature severityMajor

tagDescription_Generated_By_Proofpoint_Nexus

updated at2022_08_29

mitre tactic idTA0003

mitre tactic namePersistence

mitre technique idT1505

mitre technique nameServer_Software_Component

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