Hub configuration

Name: File With Suspicious Extension Downloaded Via Bitsadmin
Author: sigmahq

More info

1type: trigger

2name: sigmahq/proc_creation_win_bitsadmin_download_susp_extensions

3description: |

4 Detects usage of bitsadmin downloading a file with a suspicious extension

5filter: |

6 (evt.Meta.service == 'sysmon' && evt.Parsed.EventID == '1') && ((evt.Parsed.Image endsWith '\\bitsadmin.exe' || evt.Parsed.OriginalFileName == 'bitsadmin.exe') && (evt.Parsed.CommandLine contains ' /transfer ' || evt.Parsed.CommandLine contains ' /create ' || evt.Parsed.CommandLine contains ' /addfile ') && (evt.Parsed.CommandLine contains '.7z' || evt.Parsed.CommandLine contains '.asax' || evt.Parsed.CommandLine contains '.ashx' || evt.Parsed.CommandLine contains '.asmx' || evt.Parsed.CommandLine contains '.asp' || evt.Parsed.CommandLine contains '.aspx' || evt.Parsed.CommandLine contains '.bat' || evt.Parsed.CommandLine contains '.cfm' || evt.Parsed.CommandLine contains '.cgi' || evt.Parsed.CommandLine contains '.chm' || evt.Parsed.CommandLine contains '.cmd' || evt.Parsed.CommandLine contains '.dll' || evt.Parsed.CommandLine contains '.gif' || evt.Parsed.CommandLine contains '.jpeg' || evt.Parsed.CommandLine contains '.jpg' || evt.Parsed.CommandLine contains '.jsp' || evt.Parsed.CommandLine contains '.jspx' || evt.Parsed.CommandLine contains '.log' || evt.Parsed.CommandLine contains '.png' || evt.Parsed.CommandLine contains '.ps1' || evt.Parsed.CommandLine contains '.psm1' || evt.Parsed.CommandLine contains '.rar' || evt.Parsed.CommandLine contains '.scf' || evt.Parsed.CommandLine contains '.sct' || evt.Parsed.CommandLine contains '.txt' || evt.Parsed.CommandLine contains '.vbe' || evt.Parsed.CommandLine contains '.vbs' || evt.Parsed.CommandLine contains '.war' || evt.Parsed.CommandLine contains '.wsf' || evt.Parsed.CommandLine contains '.wsh' || evt.Parsed.CommandLine contains '.xll' || evt.Parsed.CommandLine contains '.zip'))

7blackhole: 2m

8#status: test

9labels:

10 service: windows

11 confidence: 1

12 spoofable: 0

13 classification:

14 - attack.t1197

15 - attack.t1036.003

17 label: "File With Suspicious Extension Downloaded Via Bitsadmin"

18 behavior : "windows:audit"

19 remediation: false

21scope:

22 type: ParentProcessId

23 expression: evt.Parsed.ParentProcessId

Hub configuration

« File With Suspicious Extension Downloaded Via Bitsadmin »v0.2 by sigmahq / proc_creation_win_bitsadmin_download_susp_extensionsAttack scenariowindowsNot spoofableLow confidenceMITRE:t1197MITRE:t1036

« File With Suspicious Extension Downloaded Via Bitsadmin »
v0.2 by sigmahq / proc_creation_win_bitsadmin_download_susp_extensions
Attack scenariowindowsNot spoofableLow confidence