Product
Avast Antivirus Installer
- First Reported
- Aug 21, 2026
- Latest Reported
- Aug 21, 2026
Reported Context (1)
- similar to the directory used by SquawkDoor, and drops three files there: the legitimate Avast Antivirus Installer (NisaSrv.exe), the malicious WTSAPI32.dll library, and a file named NisaSrv containing the FamousSparrow Deploys New SquawkDoor Backdoor and Updated SparrowDoor
Malware (7)
People (3)
Threat Actors (12)
MITRE ATT&CK (20)
Vendors (3)
Products (3)
Tools (3)
Industries (6)
Countries (9)
Note: Related entities, including threat actors, malware, CVEs, MITRE ATT&CK techniques, vendors, products, tools, countries, and industries, are shown when they appear in the same reporting. Their presence does not necessarily mean they were targeted, compromised, vulnerable, responsible for the activity, or directly involved in the incident.