Analytics Alerts

Browse the Cortex analytics alert reference.

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3 alerts match the current filters. tactic: TA0007 ✕ technique: T1003 ✕

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  • Cached credentials discovery with cmdkey Low 2 variations

    Cmdkey is a built-in Windows tool that can cache domain user credentials for use on specific target machines, Attackers can access cached user credentials using cmdkey /list.

    Activation:
    14 Days
    Training:
    30 Days
    Test:
    N/A (single event)
    Deduplication:
    1 Day
    ATT&CK tactics: Credential Access (TA0006) Discovery (TA0007)
    ATT&CK techniques: OS Credential Dumping (T1003) Account Discovery (T1087)
    Required data: XDR Agent
    Attacker's goals: Access cached user credentials.
    Investigative actions: Check the initiator process for additional suspicious activity. Check if the host is a shared host that multiple users' credentials can be extracted from.

    Variations

    The process cmdkey runs with modified name and extract cached credentials

    High overridden

    Cmdkey is a built-in Windows tool that can cache domain user credentials for use on specific target machines, Attackers can access cached user credentials using cmdkey /list. overridden

    Transfer cached credentials with cmdkey to other standard output

    Medium overridden

    Cmdkey is a built-in Windows tool that can cache domain user credentials for use on specific target machines, Attackers can access cached user credentials using cmdkey /list. overridden

  • Uncommon access to /etc/passwd Informational 11 variations

    A process made an uncommon attempt to access /etc/passwd.

    Activation:
    14 Days
    Training:
    30 Days
    Test:
    N/A (single event)
    Deduplication:
    1 Day
    ATT&CK tactics: Discovery (TA0007) Credential Access (TA0006)
    ATT&CK techniques: File and Directory Discovery (T1083) System Service Discovery (T1007) System Owner/User Discovery (T1033) System Information Discovery (T1082) Account Discovery (T1087) Account Discovery: Local Account (T1087.001) OS Credential Dumping (T1003)
    Required data: XDR Agent with eXtended Threat Hunting (XTH)
    Detector tags: EDR Discovery Analytics, Credentials Grabbing Analytics
    Attacker's goals: Attackers may attempt to access sensitive files to steal credentials, perform reconnaissance on system configurations and users, and find pathways for lateral movement.
    Investigative actions: Review the event's context - examine the process, its command line, and its origin to gain a comprehensive understanding of the anomalous access. Assess the behavior's legitimacy: Given that this is an uncommon event, determine if this file access is an expected and authorized behavior for the actor process.

    Variations

    Uncommon access to /etc/passwd by a security testing tool

    Medium overridden

    A process made an uncommon attempt to access /etc/passwd. overridden

    Uncommon access to /etc/passwd by a potentially known credential dumper or enumeration script

    Medium overridden

    A process made an uncommon attempt to access /etc/passwd. overridden

    Uncommon access to /etc/passwd by a potential Webshell

    Medium overridden

    A process made an uncommon attempt to access /etc/passwd. overridden

    Uncommon link creation to /etc/passwd

    Low overridden

    A process made an uncommon attempt to access /etc/passwd. overridden

    Uncommon access to /etc/passwd with both /etc/passwd and /etc/shadow in the command line

    Low overridden

    A process made an uncommon attempt to access /etc/passwd. overridden

    Uncommon access to /etc/passwd, involving a network utility

    Low overridden

    A process made an uncommon attempt to access /etc/passwd. overridden

    Uncommon access to /etc/passwd from temporary or world writable directories

    Low overridden

    A process made an uncommon attempt to access /etc/passwd. overridden

    Uncommon access to /etc/passwd with additional sensitive files in the command line

    Low overridden

    A process made an uncommon attempt to access /etc/passwd. overridden

    Uncommon access to /etc/passwd via a new inline bash script

    Low overridden

    A process made an uncommon attempt to access /etc/passwd. overridden

    Uncommon access to /etc/passwd using an interactive binary

    Low overridden

    A process made an uncommon attempt to access /etc/passwd. overridden

    Uncommon access to /etc/passwd using an interactive shell

    Low overridden

    A process made an uncommon attempt to access /etc/passwd. overridden

  • Uncommon attempt at grabbing credentials from a sensitive file Informational 8 variations

    A process made an uncommon attempt to access a file that may contain sensitive information.

    Activation:
    14 Days
    Training:
    30 Days
    Test:
    N/A (single event)
    Deduplication:
    1 Day
    ATT&CK tactics: Credential Access (TA0006) Discovery (TA0007)
    ATT&CK techniques: OS Credential Dumping (T1003) Unsecured Credentials: Credentials In Files (T1552.001) Unsecured Credentials (T1552) Credentials from Password Stores (T1555) Account Discovery (T1087)
    Required data: XDR Agent with eXtended Threat Hunting (XTH)
    Detector tags: Credentials Grabbing Analytics
    Attacker's goals: Attackers may attempt to access sensitive files to steal credentials, perform reconnaissance on system configurations and users, and find pathways for lateral movement.
    Investigative actions: Review the event's context - examine the process, its command line, and its origin to gain a comprehensive understanding of the anomalous access. Assess the behavior's legitimacy: Given that this is an uncommon event, determine if this file access is an expected and authorized behavior for the actor process.

    Variations

    Uncommon attempt at grabbing credentials from a sensitive file by a security testing tool

    High overridden

    A process made an uncommon attempt to access a file that may contain sensitive information. overridden

    Uncommon attempt at grabbing credentials from a sensitive file by a potentially known credential dumper or enumeration script

    Medium overridden

    A process made an uncommon attempt to access a file that may contain sensitive information. overridden

    Uncommon attempt at grabbing credentials from an SSH private key

    Low overridden

    A process made an uncommon attempt to access a file that may contain sensitive information. overridden

    Uncommon attempt at grabbing credentials from a sensitive file by a potential Webshell

    Low overridden

    A process made an uncommon attempt to access a file that may contain sensitive information. overridden

    Uncommon attempt at grabbing credentials from a sensitive file by a script that was executed by a rare causality

    Low overridden

    A process made an uncommon attempt to access a file that may contain sensitive information. overridden

    Uncommon attempt at grabbing credentials from a sensitive file from temporary or world writable directories

    Low overridden

    A process made an uncommon attempt to access a file that may contain sensitive information. overridden

    Uncommon attempt at grabbing credentials from a sensitive file by a rare process that was executed by cron

    Low overridden

    A process made an uncommon attempt to access a file that may contain sensitive information. overridden

    Uncommon attempt at grabbing credentials from a sensitive file by a non-GTFOBIN process

    Low overridden

    A process made an uncommon attempt to access a file that may contain sensitive information. overridden