ET WEB_CLIENT Request for search-ms file extension - Possible NTLM Hash Leak Attempt Attempt
Sourceet/open
CreatedJanuary 24, 2024
UpdatedJanuary 24, 2024
Classificationcredential-theft
alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET WEB_CLIENT Request for search-ms file extension - Possible NTLM Hash Leak Attempt Attempt"; flow:established,to_server; http.method; content:"GET"; http.uri; content:"|2e|search-ms"; fast_pattern; endswith; reference:url,www.varonis.com/blog/outlook-vulnerability-new-ways-to-leak-ntlm-hashes; classtype:credential-theft; sid:2050425; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, affected_product Windows_11, attack_target Client_Endpoint, created_at 2024_01_24, deployment Perimeter, deployment SSLDecrypt, performance_impact Low, confidence Low, signature_severity Major, updated_at 2024_01_24; target:src_ip;)
Metadata
affected productWindows_11
attack targetClient_Endpoint
created at2024_01_24
deploymentSSLDecrypt
performance impactLow
confidenceLow
signature severityMajor
updated at2024_01_24
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