Nasreddine Bencherchali
2cb7375c6b
update: Cred Dump Tools Dropped Files - Add procdump.exe and procdump64a.exe update: File Download From Browser Process Via Inline URL - Enhance selection by splitting CLI markers for better matching update: Tor Client/Browser Execution - Add additional PE metadata markers update: System Information Discovery via Registry Queries - Enhance registry markers update: PUA - AdFind Suspicious Execution - Add -sc to dclist string for more accurate coverage. fix: Removal Of Index Value to Hide Schedule Task - Registry - Remove EventType condition that broke the rule. fix: Removal Of SD Value to Hide Schedule Task - Registry - Remove EventType condition that broke the rule. fix: Creation of a Local Hidden User Account by Registry - Fix the TargetObject value fix: Potential Persistence Via New AMSI Providers - Registry - Change logsource and fix the rule logic fix: Potential COM Object Hijacking Via TreatAs Subkey - Registry - Change logsource and fix the rule logic fix: Potential Persistence Via Logon Scripts - Registry - Fix incorrect logsource fix: PUA - Sysinternal Tool Execution - Registry - Fix incorrect logsource fix: Suspicious Execution Of Renamed Sysinternals Tools - Registry - Fix incorrect logsource fix: PUA - Sysinternals Tools Execution - Registry - Fix incorrect logsource chore: add CI script for regression chore: add regression data --------- Co-authored-by: swachchhanda000 <87493836+swachchhanda000@users.noreply.github.com> Co-authored-by: phantinuss <79651203+phantinuss@users.noreply.github.com>
40 lines
1.1 KiB
YAML
40 lines
1.1 KiB
YAML
title: Binary Padding - Linux
|
|
id: c52a914f-3d8b-4b2a-bb75-b3991e75f8ba
|
|
status: test
|
|
description: |
|
|
Adversaries may use binary padding to add junk data and change the on-disk representation of malware.
|
|
This rule detect using dd and truncate to add a junk data to file.
|
|
references:
|
|
- https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1027.001/T1027.001.md
|
|
author: Igor Fits, oscd.community
|
|
date: 2020-10-13
|
|
modified: 2023-05-03
|
|
tags:
|
|
- attack.defense-evasion
|
|
- attack.t1027.001
|
|
logsource:
|
|
product: linux
|
|
service: auditd
|
|
detection:
|
|
selection_execve:
|
|
type: 'EXECVE'
|
|
keywords_truncate:
|
|
'|all':
|
|
- 'truncate'
|
|
- '-s'
|
|
keywords_dd:
|
|
'|all':
|
|
- 'dd'
|
|
- 'if='
|
|
keywords_filter:
|
|
- 'of='
|
|
condition: selection_execve and (keywords_truncate or (keywords_dd and not keywords_filter))
|
|
falsepositives:
|
|
- Unknown
|
|
level: high
|
|
simulation:
|
|
- type: atomic-red-team
|
|
name: Pad Binary to Change Hash - Linux/macOS dd
|
|
technique: T1027.001
|
|
atomic_guid: ffe2346c-abd5-4b45-a713-bf5f1ebd573a
|