Threat Group Cards: A Threat Actor Encyclopedia Archived: 2026-04-05 13:20:20 UTC Home > List all groups > List all tools > List all groups using tool NIGHTJAR Tool: NIGHTJAR Names NIGHTJAR Category Malware Type Downloader Description (Mandiant) NIGHTJAR is a Java uploader observed during multiple investigations that appears to be based on code found here. NIGHTJAR will listen on a designated socket, provided at runtime on the command line, to download a file and save it to disk. This malware does not contain a persistence mechanism and has been observed in the C:\Windows\Temp or C:\inetpub\wwwroot directory. Information Last change to this tool card: 26 December 2021 Download this tool card in JSON format All groups using tool NIGHTJAR Changed Name Country Observed APT groups   FIN13 [Unknown] 2016   1 group listed (1 APT, 0 other, 0 unknown) Source: https://apt.etda.or.th/cgi-bin/listgroups.cgi?u=5ba7b944-9943-4b72-8474-a1525e20a246 https://apt.etda.or.th/cgi-bin/listgroups.cgi?u=5ba7b944-9943-4b72-8474-a1525e20a246 Page 1 of 1