""ET TROJAN SluttyPutty isDebuggerPresent in Fake Putty Executable""

SID: 2030382

Revision: 2

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2020_06_23, deployment Perimeter, performance_impact Low, signature_severity Major, updated_at 2020_06_23

Reference:

  • md5

  • b0dd930c652d1b9350b7c8a29e798cd5

Protocol: tcp

Source Network: $EXTERNAL_NET

Source Port: $HTTP_PORTS

Destination Network: $HOME_NET

Destination Port: any

Flow: established,to_client

Contents:

  • Value: "|4d 5a|" Depth: 2

  • Value: "https://www.chiark.greenend.org.uk/~sgtatham/putty/"

  • Value: "IsDebuggerPresent"

Within:

PCRE:

Special Options:

  • file_data

source