""ET TROJAN Win32/Tofsee Unique Email Body Byte Sequence Observed""

SID: 2029775

Revision: 2

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, created_at 2020_03_31, malware_family Tofsee, updated_at 2020_03_31

Reference:

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: [25,587]

Flow: to_server,established

Contents:

  • Value: "|0d 0a 0d 0a 3d 32 30 0d 0a 0d 0a 0d 0a 0d 0a 0d 0a 0d 0a 53 0d 0a|"

Within:

PCRE:

Special Options:

  • fast_pattern

source