Applied Cybernetics Group
T1087 — Account Discovery
- Technique
T1087- Tactics
- Discovery
- MISP citations
- 0
- KEV CVEs mapped
- 6
- Community rules
- 16
- thrunt rules
- 0
- Upstream
- https://attack.mitre.org/techniques/T1087
MITRE description
Adversaries may attempt to get a listing of valid accounts, usernames, or email addresses on a system or within a compromised environment. This information can help adversaries determine which accounts exist, which can aid in follow-on behavior such as brute-forcing, spear-phishing attacks, or account takeovers (e.g., [Valid Accounts](https://attack.mitre.org/techniques/T1078)). Adversaries may use several methods to enumerate accounts, including abuse of existing tools, built-in commands, and potential misconfigurations that leak account names and roles or permissions in the targeted environment. For examples, cloud environments typically provide easily accessible interfaces to obtain user lists.(Citation: AWS List Users)(Citation: Google Cloud - IAM Servie Accounts List API) On hosts, adversaries can use default [PowerShell](https://attack.mitre.org/techniques/T1059/001) and other command line functionality to identify accounts. Information about email addresses and accounts may also be extracted by searching an infected system’s files.
KEV CVEs mapped to this technique
Per MITRE CTID's hand-curated KEV→ATT&CK mappings — these are the actively-exploited vulnerabilities behind this technique's KEV signal.
Detection coverage
SigmaHQ community rules
- Potential Pikabot Discovery Activity (emerging-threats)
- SharpHound Recon Account Discovery (core)
- Hacktool Ruler (core)
- Uncommon Connection to Active Directory Web Services (core)
- Malicious PowerShell Commandlets - PoshModule (core)
- Malicious PowerShell Commandlets - ScriptBlock (core)
- HackTool - SOAPHound Execution (core)
- HackTool - winPEAS Execution (core)
- Network Reconnaissance Activity (core)
- Malicious PowerShell Commandlets - ProcessCreation (core)
- PUA - Seatbelt Execution (core)
- Potentially Suspicious EventLog Recon Activity Using Log Query Utilities (core)
- Suspicious Use of PsLogList (core)
- Chopper Webshell Process Pattern (core)
- Webshell Hacking Activity Patterns (core)
- Webshell Detection With Command Line Keywords (core)