Renamed AutoHotkey.EXE Execution

Severity: medium
Author: Nasreddine Bencherchali
Source: upstream

Detects execution of a renamed autohotkey.exe binary based on PE metadata fields

Event coverage

Provider	Event ID	Title
Sysmon	1	Process creation

Stages and Predicates

Stage 1: `selection`

or:
Description|contains: AutoHotkey
OriginalFileName: AutoHotkey.exe
OriginalFileName: AutoHotkey.rc
Product|contains: AutoHotkey

Stage 2: `not filter`

or:
Image|endswith: '\AutoHotkey.exe'
Image|endswith: '\AutoHotkey32.exe'
Image|endswith: '\AutoHotkey32_UIA.exe'
Image|endswith: '\AutoHotkey64.exe'
Image|endswith: '\AutoHotkey64_UIA.exe'
Image|endswith: '\AutoHotkeyA32.exe'
Image|endswith: '\AutoHotkeyA32_UIA.exe'
Image|endswith: '\AutoHotkeyU32.exe'
Image|endswith: '\AutoHotkeyU32_UIA.exe'
Image|endswith: '\AutoHotkeyU64.exe'
Image|endswith: '\AutoHotkeyU64_UIA.exe'
Image|contains: '\AutoHotkey'

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
`Description`	match	`AutoHotkey`
`Image`	ends_with	`\AutoHotkey.exe` `\AutoHotkey32.exe` `\AutoHotkey32_UIA.exe` `\AutoHotkey64.exe` `\AutoHotkey64_UIA.exe` `\AutoHotkeyA32.exe` `\AutoHotkeyA32_UIA.exe` `\AutoHotkeyU32.exe` `\AutoHotkeyU32_UIA.exe` `\AutoHotkeyU64.exe` `\AutoHotkeyU64_UIA.exe`
`Image`	match	`\AutoHotkey`
`OriginalFileName`	eq	`AutoHotkey.exe` `AutoHotkey.rc`
`Product`	match	`AutoHotkey`