Renamed ZOHO Dctask64 Execution
Detects a renamed "dctask64.exe" execution, a signed binary by ZOHO Corporation part of ManageEngine Endpoint Central. This binary can be abused for DLL injection, arbitrary command and process execution.
Detection logic
selection
Hashes|contains:
- IMPHASH=6834B1B94E49701D77CCB3C0895E1AFD
- IMPHASH=1BB6F93B129F398C7C4A76BB97450BBA
- IMPHASH=FAA2AC19875FADE461C8D89DCF2710A3
- IMPHASH=F1039CED4B91572AB7847D26032E6BBFfilter_main_legit_name
Image|endswith: \dctask64.exeCondition
selection and not 1 of filter_main_*Raw YAML
title: Renamed ZOHO Dctask64 Execution
id: 340a090b-c4e9-412e-bb36-b4b16fe96f9b
status: test
description: |
Detects a renamed "dctask64.exe" execution, a signed binary by ZOHO Corporation part of ManageEngine Endpoint Central.
This binary can be abused for DLL injection, arbitrary command and process execution.
references:
- https://twitter.com/gN3mes1s/status/1222088214581825540
- https://twitter.com/gN3mes1s/status/1222095963789111296
- https://twitter.com/gN3mes1s/status/1222095371175911424
author: Florian Roth (Nextron Systems), Nasreddine Bencherchali (Nextron Systems)
date: 2020-01-28
modified: 2025-01-22
tags:
- attack.privilege-escalation
- attack.stealth
- attack.t1036
- attack.t1055.001
- attack.t1202
- attack.t1218
logsource:
category: process_creation
product: windows
detection:
selection:
Hashes|contains:
- 'IMPHASH=6834B1B94E49701D77CCB3C0895E1AFD'
- 'IMPHASH=1BB6F93B129F398C7C4A76BB97450BBA'
- 'IMPHASH=FAA2AC19875FADE461C8D89DCF2710A3'
- 'IMPHASH=F1039CED4B91572AB7847D26032E6BBF'
filter_main_legit_name:
Image|endswith: '\dctask64.exe'
condition: selection and not 1 of filter_main_*
falsepositives:
- Unknown
level: highFalse positives
- Unknown