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EXPLORE DETECTIONS

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3,270 detections found

Azure Virtual Network Device Modified or Deleted

Identifies when a virtual network device is being modified or deleted. This can be a network interface, network virtual appliance, virtual hub, or virtual router.

Sigmamedium

Azure Virtual Network Modified or Deleted

Identifies when a Virtual Network is modified or deleted in Azure.

Sigmamedium

Azure VPN Connection Modified or Deleted

Identifies when a VPN connection is modified or deleted.

Sigmamedium

BaaUpdate.exe Suspicious DLL Load

Detects BitLocker Access Agent Update Utility (baaupdate.exe) loading DLLs from suspicious locations that are publicly writable which could indicate an attempt to lateral movement via BitLocker DCOM & COM Hijacking. This technique abuses COM Classes configured as INTERACTIVE USER to spawn processes in the context of the logged-on user's session. Specifically, it targets the BDEUILauncher Class (CLSID ab93b6f1-be76-4185-a488-a9001b105b94) which can launch BaaUpdate.exe, which is vulnerable to COM Hijacking when started with input parameters. This allows attackers to execute code in the user's context without needing to steal credentials or use additional techniques to compromise the account.

T1218T1021.003
Sigmahigh

Backup Catalog Deleted

Detects backup catalog deletions

T1070.004
Sigmamedium

Backup Files Deleted

Detects deletion of files with extensions often used for backup files. Adversaries may delete or remove built-in operating system data and turn off services designed to aid in the recovery of a corrupted system to prevent recovery.

T1490
Sigmamedium

Bad Opsec Defaults Sacrificial Processes With Improper Arguments

Detects attackers using tooling with bad opsec defaults. E.g. spawning a sacrificial process to inject a capability into the process without taking into account how the process is normally run. One trivial example of this is using rundll32.exe without arguments as a sacrificial process (default in CS, now highlighted by c2lint), running WerFault without arguments (Kraken - credit am0nsec), and other examples.

T1218.011
Sigmahigh

Bad Opsec Powershell Code Artifacts

focuses on trivial artifacts observed in variants of prevalent offensive ps1 payloads, including Cobalt Strike Beacon, PoshC2, Powerview, Letmein, Empire, Powersploit, and other attack payloads that often undergo minimal changes by attackers due to bad opsec.

T1059.001
Sigmacritical

Base64 Encoded PowerShell Command Detected

Detects usage of the "FromBase64String" function in the commandline which is used to decode a base64 encoded string

T1027T1140T1059.001
Sigmahigh

Base64 MZ Header In CommandLine

Detects encoded base64 MZ header in the commandline

Sigmahigh

Bash Interactive Shell

Detects execution of the bash shell with the interactive flag "-i".

Sigmalow

Binary Padding - Linux

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.

T1027.001
Sigmahigh

Binary Padding - MacOS

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.

T1027.001
Sigmahigh

Binary Proxy Execution Via Dotnet-Trace.EXE

Detects commandline arguments for executing a child process via dotnet-trace.exe

T1218
Sigmamedium

Bitbucket Audit Log Configuration Updated

Detects changes to the bitbucket audit log configuration.

T1685
Sigmamedium

Bitbucket Full Data Export Triggered

Detects when full data export is attempted.

T1213.003
Sigmahigh

Bitbucket Global Permission Changed

Detects global permissions change activity.

T1098
Sigmamedium

Bitbucket Global Secret Scanning Rule Deleted

Detects Bitbucket global secret scanning rule deletion activity.

T1685
Sigmamedium

Bitbucket Global SSH Settings Changed

Detects Bitbucket global SSH access configuration changes.

T1685T1021.004
Sigmamedium

Bitbucket Project Secret Scanning Allowlist Added

Detects when a secret scanning allowlist rule is added for projects.

T1685
Sigmalow

Bitbucket Secret Scanning Exempt Repository Added

Detects when a repository is exempted from secret scanning feature.

T1685
Sigmahigh

Bitbucket Secret Scanning Rule Deleted

Detects when secret scanning rule is deleted for the project or repository.

T1685
Sigmalow

Bitbucket Unauthorized Access To A Resource

Detects unauthorized access attempts to a resource.

T1586
Sigmacritical

Bitbucket Unauthorized Full Data Export Triggered

Detects when full data export is attempted an unauthorized user.

T1213.003T1586
Sigmacritical
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