HackTool - Htran/NATBypass Execution

Severity: high
Author: Florian Roth (Nextron Systems)
Source: upstream

Detects executable names or flags used by Htran or Htran-like tools (e.g. NATBypass)

MITRE ATT&CK coverage

Tactic	Techniques
Command & Control	`T1090` Proxy

Event coverage

Provider	Event ID	Title
Sysmon	1	Process creation
Security-Auditing	4688	A new process has been created.

Stages and Predicates

Stage 1: `1 of selection_img`

or:
Image|endswith: '\htran.exe'
Image|endswith: '\lcx.exe'

Stage 2: `1 of selection_cli`

or:
CommandLine|contains: '.exe -slave '
CommandLine|contains: '.exe -tran '

Indicators

Each row is a field, operator, and value that the rule matches. The corpus column counts how many other rules in the catalog look for the same combination: high numbers point to widely-used, community-vetted indicators. Blank or 1 shows that the indicator is specific to this rule.

Field	Kind	Values
`CommandLine`	match	`.exe -slave` `.exe -tran`
`Image`	ends_with	`\htran.exe` corpus 2 (sigma 2) `\lcx.exe`