Malicious QakBot Dropped File Creation (Event 4663)

 1title: Malicious QakBot Dropped File Creation (Event 4663)
 2id: 7daae1fd-b462-4628-a87e-5f639351b783
 3status: experimental
 4description: Detects creation of files potentially associated with QakBot initial infection, documented by Adithya Chandra and Sushant Kumar Arya of Trellix in August 2022.
 5references:
 6    - https://www.trellix.com/en-us/about/newsroom/stories/research/demystifying-qbot-malware.html
 7author: Micah Babinski
 8date: 2022/11/17
 9tags:
10    - attack.initial_access
11    - attack.defense_evasion
12    - attack.t1566
13    - attack.t1027
14    - attack.t1553
15logsource:
16    product: windows
17    service: security
18detection:
19    selection:
20        EventID: 4663
21        ObjectType: 'File'
22        AccessList: '%%4417'
23        ObjectName|endswith:
24            - '.html'
25            - '.zip'
26            - '.iso'
27            - '.lnk'
28        ObjectName|re: '.*TXRTN_[0-9]{7}\..*'
29    condition: selection
30falsepositives:
31    - Unknown
32level: high```