Discord

Tracking brief for the Shai-Hulud campaign; individual sightings are folded in as reported.

This brief details the detection of non-Discord applications accessing the Discord LevelDB database on Windows endpoints, a critical activity often indicative of credential theft or sensitive data exfiltration by infostealer malware, which can lead to unauthorized access to user profiles and messages.

Roundup of Microsoft security advisories published in July 2026.

The detection rule identifies suspicious child processes spawned from communication applications on Windows systems, potentially indicating masquerading or exploitation of vulnerabilities within these applications.

This rule detects command and control activity using common web services by identifying Windows hosts making DNS requests to a list of commonly abused web services from processes outside of known program locations, potentially indicating adversaries attempting to blend malicious traffic with legitimate network activity.

This rule detects command and control (C2) communications that use common web services to hide malicious activity on Windows hosts by identifying network connections to commonly abused web services from processes outside of known legitimate program locations, indicating potential exfiltration or C2 activity blended with legitimate traffic.

Attackers may attempt to evade defenses by masquerading malicious processes as legitimate communication applications such as Slack, WebEx, Teams, Discord, RocketChat, Mattermost, WhatsApp, Zoom, Outlook and Thunderbird.

Attackers masquerade malicious executables as legitimate business application installers to trick users into downloading and executing malware, leveraging defense evasion and initial access techniques.

This analytic detects non-Discord applications accessing the Discord LevelDB database by monitoring Windows Security Event logs (event code 4663), which may indicate attempts to steal Discord credentials or access sensitive user data, potentially compromising user profiles, messages, and other critical information.