""ET TROJAN Win32/IcedID Requesting Encoded Binary M4""

SID: 2030053

Revision: 10

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2020_04_29, deployment Perimeter, deployment SSLDecrypt, malware_family IcedID, performance_impact Moderate, confidence High, signature_severity Major, updated_at 2023_07_21

Reference:

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "Connection|3a 20|Keep-Alive|0d 0a|Cookie|3a 20|__gads="

  • Value: "__gads=" Depth: 7

  • Value: "|3b 20|_gat="

  • Value: "|3b 20|_ga="

  • Value: "|3b 20|_u="

  • Value: "|3b 20|__io="

  • Value: "|3b 20|_gid="

  • Value: !"User-Agent"

  • Value: !"Accept"

Within:

PCRE: "/^Connection\x3a\x20Keep-Alive\r\nCookie\x3a\x20\r\nHost\x3a\x20[^\r\n]+\r\n\r\n$/H"

Special Options:

  • http_cookie

  • http_cookie

  • http_cookie

  • http_cookie

  • http_cookie

  • http_cookie

  • http_header

  • http_header

source