BIOC Informational

Excel Web Query file created on disk

Excel uses Excel Web Query (.iqy) files to download data from the internet. There are campaigns in which .iqy files download a PowerShell script, which is launched via Excel and kicks off a chain of malicious downloads.

Module:
Platform Analytics
Agent event type:
File
Category:
Infiltration
Status:
Enabled
ATT&CK tactics: Initial Access (TA0001)
ATT&CK techniques: Phishing: Spearphishing Attachment (T1566.001)
Indicator:

File file name = *.iqy AND action type = create

Preventable: yes