""ET TROJAN Maldoc Downloading from Dropbox via API""

SID: 2033170

Revision: 1

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2021_06_23, deployment Perimeter, deployment SSLDecrypt, performance_impact Low, signature_severity Major, updated_at 2021_06_23

Reference:

  • md5

  • f123a68eea92b34d76f0ca0b677419bd

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "GET"

  • Value: "/2/files/download"

  • Value: "Authorization|3a 20|Bearer|20|FLtUsbS3oqcAAAAAAAAAAZ_86BAKGkKPNHeBSV8ETDcqFjlDgagrviCEw0VV6Ecn|0d 0a|"

  • Value: "/Energy/staging/debugps"

  • Value: "Host|3a 20|content.dropboxapi.com|0d 0a|"

Within:

PCRE:

Special Options:

  • http_method

  • http_uri

  • http_header

  • fast_pattern

  • http_header

  • http_header

source