Sub-technique of T1587 Develop Capabilities.View on attack.mitre.org
Adversaries may create self-signed code signing certificates that can be used during targeting. Code signing is the process of digitally signing executables and scripts to confirm the software author and guarantee that the code has not been altered or corrupted. Code signing provides a level of authenticity for a program from the developer and a guarantee that the program has not been tampered with. Users and/or security tools may trust a signed piece of code more than an unsigned piece of code even if they don't know who issued the certificate or who the author is.
Prior to Code Signing, adversaries may develop self-signed code signing certificates for use in operations.
Rules on DetectionCode tagged with T1587.002.
| Rule | Type | Risk | Data source |
|---|---|---|---|
| Cisco Secure Firewall - Blacklisted SSL Certificate Fingerprint | TTP | NULL | Cisco Secure Firewall Threat Defense Connection Event |
None recorded.
| Used by | Procedure example |
|---|---|
| GroupDaggerfly | Daggerfly created code signing certificates to sign malicious macOS files. |
| GroupPatchwork | Patchwork has created self-signed certificates from fictitious and spoofed legitimate software companies that were later used to sign malware. |
| GroupPROMETHIUM | PROMETHIUM has created self-signed certificates to sign malicious installers. |
| Used by | Procedure example |
|---|---|
| CampaignOperation Dream Job | During Operation Dream Job, Lazarus Group digitally signed their malware and the dbxcli utility. |
Data from MITRE ATT&CK® (Enterprise). ATT&CK® is a registered trademark of The MITRE Corporation.
