Windows Screen Capture in TEMP folder: endpointEndpointNoneversion:13
The following analytic detects the creation of screen capture files by the Braodo stealer malware. This stealer is known to capture screenshots of the victim's desktop as part of its data theft activities. The detection focuses on identifying unusual screen capture activity, especially when images are saved in directories often used by malware, such as temporary or hidden folders. Monitoring for these files helps to quickly identify malicious screen capture attempts, allowing security teams to respond and mitigate potential information exposure before sensitive data is compromised.
Windows Credentials from Password Stores Chrome Login Data Access: endpointEndpointNoneversion:24
The following analytic identifies non-Chrome processes accessing the Chrome user data file "login data."
This file is an SQLite database containing sensitive information, including saved passwords.
The detection leverages Windows Security Event logs, specifically event code 4663, to monitor access attempts.
This activity is significant as it may indicate attempts by threat actors to extract and decrypt stored passwords, posing a risk to user credentials.
If confirmed malicious, attackers could gain unauthorized access to sensitive accounts and escalate their privileges within the environment.
Windows Non Discord App Access Discord LevelDB: endpointEndpointNoneversion:11
The following analytic detects non-Discord applications accessing the Discord LevelDB database. It leverages Windows Security Event logs, specifically event code 4663, to identify file access attempts to the LevelDB directory by processes other than Discord. This activity is significant as it may indicate attempts to steal Discord credentials or access sensitive user data. If confirmed malicious, this could lead to unauthorized access to user profiles, messages, and other critical information, potentially compromising the security and privacy of the affected users.
Windows Unusual Process Load Mozilla NSS-Mozglue Module: endpointEndpointNoneversion:9
The following analytic identifies processes loading Mozilla NSS-Mozglue libraries such as mozglue.dll and nss3.dll. It leverages Sysmon Event logs, specifically monitoring EventCode 7, which tracks image loaded events. This activity is significant because it can indicate unauthorized access or manipulation of these libraries, which are commonly used by Mozilla applications like Firefox and Thunderbird. If confirmed malicious, this could lead to data exfiltration, credential theft, or further compromise of the system.
Windows Process Execution From ProgramData: endpointEndpointNoneversion:10
The following analytic identifies processes running from file paths within
the ProgramData directory, a common location abused by adversaries for executing
malicious code while evading detection. Threat actors often drop and execute payloads
from this directory to bypass security controls, as it typically has write permissions
for standard users. While this behavior can indicate malware execution or persistence
techniques, it is important to note that some legitimate software, installers, and
update mechanisms also run from ProgramData, leading to potential false positives.
Security teams should validate detections by correlating with other indicators,
such as unusual parent processes, unsigned binaries, or anomalous network activity.
Windows Credentials from Password Stores Chrome Extension Access: endpointEndpointNoneversion:14
The following analytic detects non-Chrome processes attempting to access the Chrome extensions file.
It leverages Windows Security Event logs, specifically event code 4663, to identify this behavior.
This activity is significant because adversaries may exploit this file to extract sensitive information from the Chrome browser, posing a security risk.
If confirmed malicious, this could lead to unauthorized access to stored credentials and other sensitive data, potentially compromising the security of the affected system and broader network.
Windows Unsecured Outlook Credentials Access In Registry: endpointEndpointNoneversion:15
The following analytic detects unauthorized access to Outlook credentials stored in the Windows registry.
It leverages Windows Security Event logs, specifically EventCode 4663, to identify access attempts to registry paths associated with Outlook profiles.
This activity is significant as it may indicate attempts to steal sensitive email credentials, which could lead to unauthorized access to email accounts.
If confirmed malicious, this could allow attackers to exfiltrate sensitive information, impersonate users, or execute further unauthorized actions within Outlook, posing a significant security risk.
Windows Credentials from Password Stores Chrome LocalState Access: endpointEndpointNoneversion:24
The following analytic detects non-Chrome processes accessing the Chrome "Local State" file, which contains critical settings and information. It leverages Windows Security Event logs, specifically event code 4663, to identify this behavior.
This activity is significant because threat actors can exploit this file to extract the encrypted master key used for decrypting saved passwords in Chrome.
If confirmed malicious, this could lead to unauthorized access to sensitive information, posing a severe security risk.
Monitoring this anomaly helps identify potential threats and safeguard browser-stored data.
Windows Chromium Browser with Custom User Data Directory: endpointEndpointNoneversion:8
The following analytic detects instances where the Chromium-based browser (e.g., Google Chrome, Microsoft Edge) is launched with the --user-data-dir command-line argument. While this flag is legitimate and used for multi-profile support or automation, it is frequently leveraged by malware and adversaries to run Chrome in an isolated environment for stealth operations, credential harvesting, phishing delivery, or evasion of user session artifacts.
Windows Query Registry UnInstall Program List: endpointEndpointNoneversion:11
The following analytic detects an access request on the uninstall registry key. It leverages Windows Security Event logs, specifically event code 4663. This activity is significant because adversaries or malware can exploit this key to gather information about installed applications, aiding in further attacks. If confirmed malicious, this behavior could allow attackers to map out installed software, potentially identifying vulnerabilities or software to exploit, leading to further system compromise.
CMD Carry Out String Command Parameter: endpointEndpointNoneversion:19
The following analytic detects the use of `cmd.exe /c` to execute commands, a technique often employed by adversaries and malware to run batch commands or invoke other shells like PowerShell. This detection leverages data from Endpoint Detection and Response (EDR) agents, focusing on command-line executions and process metadata. Monitoring this activity is crucial as it can indicate script-based attacks or unauthorized command execution. If confirmed malicious, this behavior could lead to unauthorized code execution, privilege escalation, or persistence within the environment.
Windows File Download Via PowerShell: endpointEndpointNoneversion:10
The following analytic detects the use of PowerShell's download methods such as
"DownloadString" and "DownloadData" from the WebClient class or Invoke-WebRequest
and it's aliases "IWR" or "Curl".
It leverages data from Endpoint Detection and Response (EDR) agents, focusing on
process execution logs that include command-line details.
This activity can be significant such methods and functions are commonly used in malicious
PowerShell scripts to fetch and execute remote code.
If confirmed malicious, this behavior could allow an attacker to download and run
arbitrary code, potentially leading to unauthorized access, data exfiltration,
or further compromise of the affected system.
Windows MSIExec Remote Download: endpointEndpointNoneversion:17
The following analytic detects the use of msiexec.exe with an HTTP or
HTTPS URL in the command line, indicating a remote file download attempt. This detection
leverages data from Endpoint Detection and Response (EDR) agents, focusing on process
execution logs that include command-line details. This activity is significant as
it may indicate an attempt to download and execute potentially malicious software
from a remote server. If confirmed malicious, this could lead to unauthorized code
execution, system compromise, or further malware deployment within the network.
Windows Credential Access From Browser Password Store: endpointEndpointNoneversion:24
The following analytic identifies a possible non-common browser process accessing its browser user data profile.
This tactic/technique has been observed in various Trojan Stealers, such as SnakeKeylogger, which attempt to gather sensitive browser information and credentials as part of their exfiltration strategy.
Detecting this anomaly can serve as a valuable pivot for identifying processes that access lists of browser user data profiles unexpectedly.
This detection uses a lookup file `browser_app_list` that maintains a list of well known browser applications and the browser paths that are allowed to access the browser user data profiles.
Non Chrome Process Accessing Chrome Default Dir: endpointEndpointNoneversion:21
The following analytic detects a non-Chrome process accessing files in the Chrome user default folder. It leverages Windows Security Event logs, specifically event code 4663, to identify unauthorized access attempts. This activity is significant because the Chrome default folder contains sensitive user data such as login credentials, browsing history, and cookies. If confirmed malicious, this behavior could indicate an attempt to exfiltrate sensitive information, often associated with RATs, trojans, and advanced persistent threats like FIN7. Such access could lead to data theft and further compromise of the affected system.
Non Firefox Process Access Firefox Profile Dir: endpointEndpointNoneversion:22
The following analytic detects non-Firefox processes accessing the Firefox profile directory, which contains sensitive user data such as login credentials, browsing history, and cookies. It leverages Windows Security Event logs, specifically event code 4663, to monitor access attempts. This activity is significant because it may indicate attempts by malware, such as RATs or trojans, to harvest user information. If confirmed malicious, this behavior could lead to data exfiltration, unauthorized access to user accounts, and further compromise of the affected system.
Windows MSIExec Spawn Discovery Command: endpointEndpointNoneversion:16
The following analytic detects MSIExec spawning multiple discovery commands.
This behavior is identified using data from Endpoint Detection and Response (EDR) agents, focusing on process creation events where MSIExec is the parent process.
If confirmed malicious, an attacker could use these discovery commands to gather system information, potentially leading to further exploitation or lateral movement within the network.
Windows Suspicious Process File Path: endpointEndpointNoneversion:29
The following analytic identifies processes running from file paths not typically associated with legitimate software. It leverages data from Endpoint Detection and Response (EDR) agents, focusing on specific process paths within the Endpoint data model. This activity is significant because adversaries often use unconventional file paths to execute malicious code without requiring administrative privileges. If confirmed malicious, this behavior could indicate an attempt to bypass security controls, leading to unauthorized software execution, potential system compromise, and further malicious activities within the environment.
