Suspicious Child Process Of Manage Engine ServiceDesk

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

Detects suspicious child processes of the "Manage Engine ServiceDesk Plus" Java web service

MITRE ATT&CK coverage

Tactic	Techniques
Command & Control	`T1102` Web Service

Event coverage

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

Stages and Predicates

Stage 1: `selection`

or:
Image|endswith: '\AppVLP.exe'
Image|endswith: '\bash.exe'
Image|endswith: '\bitsadmin.exe'
Image|endswith: '\calc.exe'
Image|endswith: '\certutil.exe'
Image|endswith: '\cscript.exe'
Image|endswith: '\curl.exe'
Image|endswith: '\forfiles.exe'
Image|endswith: '\mftrace.exe'
Image|endswith: '\mshta.exe'
Image|endswith: '\net.exe'
Image|endswith: '\net1.exe'
Image|endswith: '\notepad.exe'
Image|endswith: '\powershell.exe'
Image|endswith: '\pwsh.exe'
Image|endswith: '\query.exe'
Image|endswith: '\reg.exe'
Image|endswith: '\schtasks.exe'
Image|endswith: '\scrcons.exe'
Image|endswith: '\sh.exe'
Image|endswith: '\systeminfo.exe'
Image|endswith: '\whoami.exe'
Image|endswith: '\wmic.exe'
Image|endswith: '\wscript.exe'
ParentImage|contains: '\ManageEngine\ServiceDesk\'
ParentImage|contains: '\java.exe'

Stage 2: `not 1 of filter_main_net`

or:
Image|endswith: '\net.exe'
Image|endswith: '\net1.exe'
CommandLine|contains: ' stop'

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	`stop`
`Image`	ends_with	`\AppVLP.exe` corpus 6 (sigma 6) `\bash.exe` corpus 17 (sigma 17) `\bitsadmin.exe` corpus 23 (sigma 23) `\calc.exe` corpus 13 (sigma 13) `\certutil.exe` corpus 34 (sigma 34) `\cscript.exe` corpus 64 (sigma 64) `\curl.exe` corpus 19 (sigma 19) `\forfiles.exe` corpus 11 (sigma 11) `\mftrace.exe` corpus 6 (sigma 6) `\mshta.exe` corpus 57 (sigma 57) `\net.exe` corpus 27 (sigma 27) `\net1.exe` corpus 25 (sigma 25) `\notepad.exe` corpus 11 (sigma 11) `\powershell.exe` corpus 143 (sigma 143) `\pwsh.exe` corpus 140 (sigma 140) `\query.exe` corpus 5 (sigma 5) `\reg.exe` corpus 46 (sigma 46) `\schtasks.exe` corpus 45 (sigma 45) `\scrcons.exe` corpus 8 (sigma 8) `\sh.exe` corpus 13 (sigma 13) `\systeminfo.exe` corpus 9 (sigma 9) `\whoami.exe` corpus 18 (sigma 18) `\wmic.exe` corpus 37 (sigma 37) `\wscript.exe` corpus 64 (sigma 64)
`ParentImage`	match	`\ManageEngine\ServiceDesk\` `\java.exe`