Phoenix Studio
Convert indexed Sigma rules into analyst-ready detections.
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Indexed Rules
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17
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CLI Versions
10
Newest: 2.0.2
Translation Workspace
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Active Rule
Malware Shellcode in Verclsid Target Process
Target Profile
Splunk
Splunk SPL & tstats data model queries
Format Mode
Default
Plain SPL queries
Conversion Output
Malware Shellcode in Verclsid Target Process
Using Splunk · Default · sigma-cli 2.0.2
Translation controls
Adjust the rule on the left, then regenerate when you want a fresh backend-native query.
BackendSplunkFormatDefaultVersion2.0.2
title: Malware Shellcode in Verclsid Target Process
id: b7967e22-3d7e-409b-9ed5-cdae3f9243a1
status: test
description: Detects a process access to verclsid.exe that injects shellcode from a Microsoft Office application / VBA macro
references:
- https://twitter.com/JohnLaTwC/status/837743453039534080
author: John Lambert (tech), Florian Roth (Nextron Systems)
date: 2017-03-04
modified: 2021-11-27
tags:
- attack.defense-evasion
- attack.privilege-escalation
- attack.t1055
- detection.emerging-threats
logsource:
category: process_access
product: windows
definition: 'Requirements: The following config is required to generate the necessary Event ID 10 Process Access events: <ProcessAccess onmatch="include"><CallTrace condition="contains">VBE7.DLL</CallTrace></ProcessAccess><ProcessAccess onmatch="exclude"><CallTrace condition="excludes">UNKNOWN</CallTrace></ProcessAccess>'
detection:
selection_target:
TargetImage|endswith: '\verclsid.exe'
GrantedAccess: '0x1FFFFF'
selection_calltrace_1:
CallTrace|contains|all:
- '|UNKNOWN('
- 'VBE7.DLL'
selection_calltrace_2:
SourceImage|contains: '\Microsoft Office\'
CallTrace|contains: '|UNKNOWN'
condition: selection_target and 1 of selection_calltrace_*
falsepositives:
- Unknown
level: high
CLI command
Copy the exact command to reproduce this translation locally.
sigma convert --without-pipeline -t splunk -f default rules-emerging-threats/2017/Malware/Hancitor/proc_access_win_malware_verclsid_shellcode.yml