linux-index.md

Linux Atomic Tests by ATT&CK Tactic & Technique

persistence

• T1156 .bash_profile and .bashrc
  • Atomic Test #1: Add command to .bash_profile [macos, linux]
  • Atomic Test #2: Add command to .bashrc [macos, linux]
• T1098 Account Manipulation
• T1067 Bootkit CONTRIBUTE A TEST
• T1176 Browser Extensions
  • Atomic Test #1: Chrome (Developer Mode) [linux, windows, macos]
  • Atomic Test #2: Chrome (Chrome Web Store) [linux, windows, macos]
  • Atomic Test #3: Firefox [linux, windows, macos]
• T1136 Create Account
  • Atomic Test #1: Create a user account on a Linux system [linux]
  • Atomic Test #5: Create a new user in Linux with root UID and GID. [linux]
• T1158 Hidden Files and Directories
  • Atomic Test #1: Create a hidden file in a hidden directory [linux, macos]
• T1525 Implant Container Image CONTRIBUTE A TEST
• T1215 Kernel Modules and Extensions
  • Atomic Test #1: Linux - Load Kernel Module via insmod [linux]
• T1168 Local Job Scheduling
  • Atomic Test #1: Cron - Replace crontab with referenced file [macos, linux]
  • Atomic Test #2: Cron - Add script to cron folder [macos, linux]
  • Atomic Test #3: Event Monitor Daemon Persistence [macos, linux]
• T1137 Office Application Startup
• T1205 Port Knocking CONTRIBUTE A TEST
• T1108 Redundant Access CONTRIBUTE A TEST
• T1505 Server Software Component
• T1166 Setuid and Setgid
  • Atomic Test #1: Make and modify binary from C source [macos, linux]
  • Atomic Test #2: Set a SetUID flag on file [macos, linux]
  • Atomic Test #3: Set a SetGID flag on file [macos, linux]
• T1501 Systemd Service
  • Atomic Test #1: Create Systemd Service [linux]
• T1154 Trap
  • Atomic Test #1: Trap [macos, linux]
• T1078 Valid Accounts CONTRIBUTE A TEST
• T1100 Web Shell

impact

• T1531 Account Access Removal
• T1485 Data Destruction
  • Atomic Test #5: macOS/Linux - Overwrite file with DD [linux, macos]
• T1486 Data Encrypted for Impact CONTRIBUTE A TEST
• T1491 Defacement CONTRIBUTE A TEST
• T1488 Disk Content Wipe CONTRIBUTE A TEST
• T1487 Disk Structure Wipe CONTRIBUTE A TEST
• T1499 Endpoint Denial of Service CONTRIBUTE A TEST
• T1495 Firmware Corruption CONTRIBUTE A TEST
• T1490 Inhibit System Recovery
• T1498 Network Denial of Service CONTRIBUTE A TEST
• T1496 Resource Hijacking
  • Atomic Test #1: macOS/Linux - Simulate CPU Load with Yes [macos, linux]
• T1494 Runtime Data Manipulation CONTRIBUTE A TEST
• T1492 Stored Data Manipulation CONTRIBUTE A TEST
• T1529 System Shutdown/Reboot
  • Atomic Test #3: Restart System via shutdown - macOS/Linux [macos, linux]
  • Atomic Test #4: Shutdown System via shutdown - macOS/Linux [macos, linux]
  • Atomic Test #5: Restart System via reboot - macOS/Linux [macos, linux]
  • Atomic Test #6: Shutdown System via halt - Linux [linux]
  • Atomic Test #7: Reboot System via halt - Linux [linux]
  • Atomic Test #8: Shutdown System via poweroff - Linux [linux]
  • Atomic Test #9: Reboot System via poweroff - Linux [linux]
• T1493 Transmitted Data Manipulation CONTRIBUTE A TEST

discovery

• T1087 Account Discovery
  • Atomic Test #1: Enumerate all accounts [linux, macos]
  • Atomic Test #2: View sudoers access [linux, macos]
  • Atomic Test #3: View accounts with UID 0 [linux, macos]
  • Atomic Test #4: List opened files by user [linux, macos]
  • Atomic Test #5: Show if a user account has ever logged in remotely [linux, macos]
  • Atomic Test #6: Enumerate users and groups [linux, macos]
• T1217 Browser Bookmark Discovery
  • Atomic Test #1: List Mozilla Firefox Bookmark Database Files on Linux [linux]
• T1538 Cloud Service Dashboard CONTRIBUTE A TEST
• T1526 Cloud Service Discovery CONTRIBUTE A TEST
• T1083 File and Directory Discovery
  • Atomic Test #3: Nix File and Diectory Discovery [macos, linux]
  • Atomic Test #4: Nix File and Directory Discovery [macos, linux]
• T1046 Network Service Scanning
  • Atomic Test #1: Port Scan [linux, macos]
  • Atomic Test #2: Port Scan Nmap [linux, macos]
• T1135 Network Share Discovery
  • Atomic Test #1: Network Share Discovery [macos, linux]
• T1040 Network Sniffing
  • Atomic Test #1: Packet Capture Linux [linux]
• T1201 Password Policy Discovery
  • Atomic Test #1: Examine password complexity policy - Ubuntu [linux]
  • Atomic Test #2: Examine password complexity policy - CentOS/RHEL 7.x [linux]
  • Atomic Test #3: Examine password complexity policy - CentOS/RHEL 6.x [linux]
  • Atomic Test #4: Examine password expiration policy - All Linux [linux]
• T1069 Permission Groups Discovery
  • Atomic Test #1: Permission Groups Discovery [macos, linux]
• T1057 Process Discovery
  • Atomic Test #1: Process Discovery - ps [macos, linux]
• T1018 Remote System Discovery
  • Atomic Test #6: Remote System Discovery - arp nix [linux, macos]
  • Atomic Test #7: Remote System Discovery - sweep [linux, macos]
• T1518 Software Discovery
• T1082 System Information Discovery
  • Atomic Test #2: System Information Discovery [linux, macos]
  • Atomic Test #3: List OS Information [linux, macos]
  • Atomic Test #4: Linux VM Check via Hardware [linux]
  • Atomic Test #5: Linux VM Check via Kernel Modules [linux]
  • Atomic Test #7: Hostname Discovery [linux, macos]
• T1016 System Network Configuration Discovery
  • Atomic Test #3: System Network Configuration Discovery [macos, linux]
• T1049 System Network Connections Discovery
  • Atomic Test #3: System Network Connections Discovery Linux & MacOS [linux, macos]
• T1033 System Owner/User Discovery
  • Atomic Test #2: System Owner/User Discovery [linux, macos]

credential-access

• T1098 Account Manipulation
• T1139 Bash History
  • Atomic Test #1: Search Through Bash History [linux, macos]
• T1110 Brute Force
• T1522 Cloud Instance Metadata API CONTRIBUTE A TEST
• T1003 Credential Dumping
• T1503 Credentials from Web Browsers CONTRIBUTE A TEST
• T1081 Credentials in Files
  • Atomic Test #2: Extract passwords with grep [macos, linux]
• T1212 Exploitation for Credential Access CONTRIBUTE A TEST
• T1056 Input Capture
• T1040 Network Sniffing
  • Atomic Test #1: Packet Capture Linux [linux]
• T1145 Private Keys
  • Atomic Test #2: Discover Private SSH Keys [macos, linux]
  • Atomic Test #3: Copy Private SSH Keys with CP [linux]
  • Atomic Test #4: Copy Private SSH Keys with rsync [macos, linux]
• T1528 Steal Application Access Token CONTRIBUTE A TEST
• T1539 Steal Web Session Cookie CONTRIBUTE A TEST
• T1111 Two-Factor Authentication Interception CONTRIBUTE A TEST

defense-evasion

• T1527 Application Access Token CONTRIBUTE A TEST
• T1009 Binary Padding
  • Atomic Test #1: Pad Binary to Change Hash - Linux/macOS dd [macos, linux]
• T1146 Clear Command History
  • Atomic Test #1: Clear Bash history (rm) [linux, macos]
  • Atomic Test #2: Clear Bash history (echo) [linux, macos]
  • Atomic Test #3: Clear Bash history (cat dev/null) [linux, macos]
  • Atomic Test #4: Clear Bash history (ln dev/null) [linux, macos]
  • Atomic Test #5: Clear Bash history (truncate) [linux]
  • Atomic Test #6: Clear history of a bunch of shells [linux, macos]
• T1500 Compile After Delivery
• T1090 Connection Proxy
  • Atomic Test #1: Connection Proxy [macos, linux]
• T1089 Disabling Security Tools
  • Atomic Test #1: Disable iptables firewall [linux]
  • Atomic Test #2: Disable syslog [linux]
  • Atomic Test #3: Disable Cb Response [linux]
  • Atomic Test #4: Disable SELinux [linux]
• T1480 Execution Guardrails CONTRIBUTE A TEST
• T1211 Exploitation for Defense Evasion CONTRIBUTE A TEST
• T1107 File Deletion
  • Atomic Test #1: Delete a single file - Linux/macOS [linux, macos]
  • Atomic Test #2: Delete an entire folder - Linux/macOS [linux, macos]
  • Atomic Test #3: Overwrite and delete a file with shred [linux]
  • Atomic Test #12: Delete Filesystem - Linux [linux]
• T1222 File and Directory Permissions Modification
  • Atomic Test #8: chmod - Change file or folder mode (numeric mode) [macos, linux]
  • Atomic Test #9: chmod - Change file or folder mode (symbolic mode) [macos, linux]
  • Atomic Test #10: chmod - Change file or folder mode (numeric mode) recursively [macos, linux]
  • Atomic Test #11: chmod - Change file or folder mode (symbolic mode) recursively [macos, linux]
  • Atomic Test #12: chown - Change file or folder ownership and group [macos, linux]
  • Atomic Test #13: chown - Change file or folder ownership and group recursively [macos, linux]
  • Atomic Test #14: chown - Change file or folder mode ownership only [macos, linux]
  • Atomic Test #15: chown - Change file or folder ownership recursively [macos, linux]
  • Atomic Test #16: chattr - Remove immutable file attribute [macos, linux]
• T1148 HISTCONTROL
  • Atomic Test #1: Disable history collection [linux, macos]
  • Atomic Test #2: Mac HISTCONTROL [macos, linux]
• T1158 Hidden Files and Directories
  • Atomic Test #1: Create a hidden file in a hidden directory [linux, macos]
• T1066 Indicator Removal from Tools CONTRIBUTE A TEST
• T1070 Indicator Removal on Host
  • Atomic Test #3: rm -rf [macos, linux]
  • Atomic Test #4: Overwrite Linux Mail Spool [linux]
  • Atomic Test #5: Overwrite Linux Log [linux]
• T1130 Install Root Certificate
  • Atomic Test #1: Install root CA on CentOS/RHEL [linux]
• T1036 Masquerading
  • Atomic Test #2: Masquerading as Linux crond process. [linux]
• T1027 Obfuscated Files or Information
  • Atomic Test #1: Decode base64 Data into Script [macos, linux]
• T1205 Port Knocking CONTRIBUTE A TEST
• T1055 Process Injection
  • Atomic Test #3: Shared Library Injection via /etc/ld.so.preload [linux]
  • Atomic Test #4: Shared Library Injection via LD_PRELOAD [linux]
• T1108 Redundant Access CONTRIBUTE A TEST
• T1536 Revert Cloud Instance CONTRIBUTE A TEST
• T1014 Rootkit
  • Atomic Test #1: Loadable Kernel Module based Rootkit [linux]
  • Atomic Test #2: Loadable Kernel Module based Rootkit [linux]
• T1064 Scripting
  • Atomic Test #1: Create and Execute Bash Shell Script [macos, linux]
• T1151 Space after Filename
• T1099 Timestomp
  • Atomic Test #1: Set a file's access timestamp [linux, macos]
  • Atomic Test #2: Set a file's modification timestamp [linux, macos]
  • Atomic Test #3: Set a file's creation timestamp [linux, macos]
  • Atomic Test #4: Modify file timestamps using reference file [linux, macos]
• T1535 Unused/Unsupported Cloud Regions CONTRIBUTE A TEST
• T1078 Valid Accounts CONTRIBUTE A TEST
• T1102 Web Service
• T1506 Web Session Cookie CONTRIBUTE A TEST

lateral-movement

• T1527 Application Access Token CONTRIBUTE A TEST
• T1017 Application Deployment Software CONTRIBUTE A TEST
• T1210 Exploitation of Remote Services CONTRIBUTE A TEST
• T1534 Internal Spearphishing CONTRIBUTE A TEST
• T1105 Remote File Copy
  • Atomic Test #1: rsync remote file copy (push) [linux, macos]
  • Atomic Test #2: rsync remote file copy (pull) [linux, macos]
  • Atomic Test #3: scp remote file copy (push) [linux, macos]
  • Atomic Test #4: scp remote file copy (pull) [linux, macos]
  • Atomic Test #5: sftp remote file copy (push) [linux, macos]
  • Atomic Test #6: sftp remote file copy (pull) [linux, macos]
• T1021 Remote Services CONTRIBUTE A TEST
• T1184 SSH Hijacking CONTRIBUTE A TEST
• T1072 Third-party Software CONTRIBUTE A TEST
• T1506 Web Session Cookie CONTRIBUTE A TEST

collection

• T1123 Audio Capture
• T1119 Automated Collection
• T1115 Clipboard Data
• T1074 Data Staged
  • Atomic Test #2: Stage data from Discovery.sh [linux, macos]
• T1530 Data from Cloud Storage Object CONTRIBUTE A TEST
• T1213 Data from Information Repositories CONTRIBUTE A TEST
• T1005 Data from Local System
• T1039 Data from Network Shared Drive CONTRIBUTE A TEST
• T1025 Data from Removable Media CONTRIBUTE A TEST
• T1114 Email Collection
• T1056 Input Capture
• T1113 Screen Capture
  • Atomic Test #3: X Windows Capture [linux]
  • Atomic Test #4: Import [linux]

exfiltration

• T1020 Automated Exfiltration CONTRIBUTE A TEST
• T1002 Data Compressed
  • Atomic Test #3: Data Compressed - nix - zip [linux, macos]
  • Atomic Test #4: Data Compressed - nix - gzip Single File [linux, macos]
  • Atomic Test #5: Data Compressed - nix - tar Folder or File [linux, macos]
• T1022 Data Encrypted
  • Atomic Test #1: Data Encrypted with zip and gpg symmetric [macos, linux]
• T1030 Data Transfer Size Limits
  • Atomic Test #1: Data Transfer Size Limits [macos, linux]
• T1048 Exfiltration Over Alternative Protocol
  • Atomic Test #1: Exfiltration Over Alternative Protocol - SSH [macos, linux]
  • Atomic Test #2: Exfiltration Over Alternative Protocol - SSH [macos, linux]
  • Atomic Test #3: Exfiltration Over Alternative Protocol - HTTP [macos, linux]
• T1041 Exfiltration Over Command and Control Channel CONTRIBUTE A TEST
• T1011 Exfiltration Over Other Network Medium CONTRIBUTE A TEST
• T1052 Exfiltration Over Physical Medium CONTRIBUTE A TEST
• T1029 Scheduled Transfer CONTRIBUTE A TEST
• T1537 Transfer Data to Cloud Account CONTRIBUTE A TEST

execution

• T1059 Command-Line Interface
  • Atomic Test #1: Command-Line Interface [macos, linux]
• T1203 Exploitation for Client Execution CONTRIBUTE A TEST
• T1061 Graphical User Interface CONTRIBUTE A TEST
• T1168 Local Job Scheduling
  • Atomic Test #1: Cron - Replace crontab with referenced file [macos, linux]
  • Atomic Test #2: Cron - Add script to cron folder [macos, linux]
  • Atomic Test #3: Event Monitor Daemon Persistence [macos, linux]
• T1064 Scripting
  • Atomic Test #1: Create and Execute Bash Shell Script [macos, linux]
• T1153 Source
  • Atomic Test #1: Execute Script using Source [macos, linux]
  • Atomic Test #2: Execute Script using Source Alias [macos, linux]
• T1151 Space after Filename
• T1072 Third-party Software CONTRIBUTE A TEST
• T1154 Trap
  • Atomic Test #1: Trap [macos, linux]
• T1204 User Execution

command-and-control

• T1043 Commonly Used Port CONTRIBUTE A TEST
• T1092 Communication Through Removable Media CONTRIBUTE A TEST
• T1090 Connection Proxy
  • Atomic Test #1: Connection Proxy [macos, linux]
• T1094 Custom Command and Control Protocol CONTRIBUTE A TEST
• T1024 Custom Cryptographic Protocol CONTRIBUTE A TEST
• T1132 Data Encoding
  • Atomic Test #1: Base64 Encoded data. [macos, linux]
• T1001 Data Obfuscation CONTRIBUTE A TEST
• T1172 Domain Fronting CONTRIBUTE A TEST
• T1483 Domain Generation Algorithms CONTRIBUTE A TEST
• T1008 Fallback Channels CONTRIBUTE A TEST
• T1104 Multi-Stage Channels CONTRIBUTE A TEST
• T1188 Multi-hop Proxy CONTRIBUTE A TEST
• T1026 Multiband Communication CONTRIBUTE A TEST
• T1079 Multilayer Encryption CONTRIBUTE A TEST
• T1205 Port Knocking CONTRIBUTE A TEST
• T1219 Remote Access Tools
• T1105 Remote File Copy
  • Atomic Test #1: rsync remote file copy (push) [linux, macos]
  • Atomic Test #2: rsync remote file copy (pull) [linux, macos]
  • Atomic Test #3: scp remote file copy (push) [linux, macos]
  • Atomic Test #4: scp remote file copy (pull) [linux, macos]
  • Atomic Test #5: sftp remote file copy (push) [linux, macos]
  • Atomic Test #6: sftp remote file copy (pull) [linux, macos]
• T1071 Standard Application Layer Protocol
  • Atomic Test #3: Malicious User Agents - Nix [linux, macos]
• T1032 Standard Cryptographic Protocol
• T1095 Standard Non-Application Layer Protocol
• T1065 Uncommonly Used Port
  • Atomic Test #2: Testing usage of uncommonly used port [linux, macos]
• T1102 Web Service

initial-access

• T1189 Drive-by Compromise CONTRIBUTE A TEST
• T1190 Exploit Public-Facing Application CONTRIBUTE A TEST
• T1200 Hardware Additions CONTRIBUTE A TEST
• T1193 Spearphishing Attachment
• T1192 Spearphishing Link CONTRIBUTE A TEST
• T1194 Spearphishing via Service CONTRIBUTE A TEST
• T1195 Supply Chain Compromise CONTRIBUTE A TEST
• T1199 Trusted Relationship CONTRIBUTE A TEST
• T1078 Valid Accounts CONTRIBUTE A TEST

privilege-escalation

• T1068 Exploitation for Privilege Escalation CONTRIBUTE A TEST
• T1055 Process Injection
  • Atomic Test #3: Shared Library Injection via /etc/ld.so.preload [linux]
  • Atomic Test #4: Shared Library Injection via LD_PRELOAD [linux]
• T1166 Setuid and Setgid
  • Atomic Test #1: Make and modify binary from C source [macos, linux]
  • Atomic Test #2: Set a SetUID flag on file [macos, linux]
  • Atomic Test #3: Set a SetGID flag on file [macos, linux]
• T1169 Sudo
  • Atomic Test #1: Sudo usage [macos, linux]
• T1206 Sudo Caching
  • Atomic Test #1: Unlimited sudo cache timeout [macos, linux]
  • Atomic Test #2: Disable tty_tickets for sudo caching [macos, linux]
• T1078 Valid Accounts CONTRIBUTE A TEST
• T1100 Web Shell