""ET INFO SUSPICIOUS SMTP EXE - ZIP file with .exe filename inside (Inbound)""
SID: 2017884
Revision: 5
Class Type: bad-unknown
Metadata: created_at 2013_12_20, updated_at 2013_12_20
Reference:
Protocol: tcp
Source Network: $EXTERNAL_NET
Source Port: any
Destination Network: $SMTP_SERVERS
Destination Port: [25,587]
Flow: established,to_server
Contents:
- Value: "|0D 0A 0D 0A|UEsDB"
Within:
PCRE: "/^[A-Za-z0-9\/+\x0D\x0A]+?(5leG|LmV4|uZXhl)/R"
Special Options: