Scheduled Task Executed Uncommon LOLBIN

Severity: medium
Author: Nasreddine Bencherchali (Nextron Systems)
Source: upstream

Detects the execution of Scheduled Tasks where the program being run is located in a suspicious location or where it is an unusual program to be run from a Scheduled Task

MITRE ATT&CK coverage

Tactic	Techniques
Execution	`T1053.005` Scheduled Task/Job: Scheduled Task
Persistence	`T1053.005` Scheduled Task/Job: Scheduled Task
Privilege Escalation	`T1053.005` Scheduled Task/Job: Scheduled Task

Event coverage

Provider	Event ID	Title
TaskScheduler	129	Task Scheduler launch task "Name" , instance "TaskName" with process ID Path.

Stages and Predicates

Stage 1: `selection`

or:
Path|endswith: '\calc.exe'
Path|endswith: '\cscript.exe'
Path|endswith: '\mshta.exe'
Path|endswith: '\mspaint.exe'
Path|endswith: '\notepad.exe'
Path|endswith: '\regsvr32.exe'
Path|endswith: '\wscript.exe'

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.