ImagingDevices Unusual Parent/Child Processes

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

Detects unusual parent or children of the ImagingDevices.exe (Windows Contacts) process as seen being used with Bumblebee activity

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_parent`

or:
ParentImage|endswith: '\WmiPrvSE.exe'
ParentImage|endswith: '\dllhost.exe'
ParentImage|endswith: '\svchost.exe'
Image|endswith: '\ImagingDevices.exe'

Stage 2: `1 of selection_child`

ParentImage|endswith: '\ImagingDevices.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.

Field	Kind	Values
`Image`	ends_with	`\ImagingDevices.exe`
`ParentImage`	ends_with	`\ImagingDevices.exe` `\WmiPrvSE.exe` corpus 3 (sigma 3) `\dllhost.exe` corpus 5 (sigma 5) `\svchost.exe` corpus 8 (sigma 8)