""ET INFO Powershell Base64 Decode Command Inbound""
SID: 2036760
Revision: 1
Class Type: misc-activity
Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2022_06_02, deployment Perimeter, signature_severity Minor, updated_at 2022_06_02, reviewed_at 2024_05_07
Reference:
Protocol: tcp
Source Network: any
Source Port: any
Destination Network: [$HOME_NET,$HTTP_SERVERS]
Destination Port: any
Flow: established,from_server
Contents:
-
Value: "[System.Text.Encoding]"
-
Value: "[System.Convert]::FromBase64String"
Within: 100
PCRE:
Special Options:
-
file_data
-
nocase
-
nocase
-
fast_pattern