""ET INFO External SMB ANDX Request for Outlook Calendar Invite File (.ics) - Possible NTLM Hash Leak Attempt""
SID: 2050432
Revision: 1
Class Type: trojan-activity
Metadata: affected_product Windows_11, attack_target Client_Endpoint, created_at 2024_01_24, deployment SSLDecrypt, performance_impact Low, confidence High, signature_severity Major, updated_at 2024_01_24
Reference:
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cve
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2023-35636
Protocol: tcp
Source Network: $HOME_NET
Source Port: any
Destination Network: $EXTERNAL_NET
Destination Port: any
Flow: established,to_server
Contents:
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Value: "|ff|SMB" Depth: 8
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Value: "|00 2E 00|i|00|c|00|s|00 00 00|"
Within:
PCRE:
Special Options:
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nocase
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fast_pattern