HackTool:Win32/WDigest.A

Guidance for individual users

Keep your operating system and antivirus products up to date. Assess if or where WDigest is used in your environment. Consider configuring a registry setting to help prevent WDigest from storing clear text passwords in memory.

To learn more about preventing trojans or other malware from affecting individual devices, read about preventing malware infection. For more tips on how to keep your device safe, go to the Microsoft security help & learning portal.

Guidance for enterprise administrators

Following the mitigation steps below can help prevent malware attacks:

• Secure Remote Desktop Gateway using solutions like Microsoft Entra multifactor authentication (MFA). If you don’t have an MFA gateway, enable network-level authentication (NLA).
• Turn on cloud-delivered protection and automatic sample submission on Microsoft Defender Antivirus. These capabilities use artificial intelligence and machine learning to quickly identify and stop new and unknown variants.
• Turn on attack surface reduction rules, including rules that block credential theft, ransomware activity, and suspicious use of PsExec and WMI. To address malicious activity initiated through weaponized Office documents, use rules that block advanced macro activity, executable content, process creation, and process injection initiated by Office applications. To assess the impact of these rules, deploy them in audit mode.
• Turn on tamper protection features to prevent attackers from stopping security services.