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// Author: jan geisbauer | |
// @janvonkirchheim | |
// ------------------------ | |
// 1. A list of all devices that have this vulnerability | |
// 2. A list of all users that uses those devices | |
// 3. If these users received .mkv files recently | |
let all_computers_with_vlcvln= | |
DeviceTvmSoftwareInventoryVulnerabilities | |
| where SoftwareName contains "vlc" | |
| summarize makelist(DeviceName); | |
let all_affected_users= | |
DeviceInfo | |
| where DeviceName in (all_computers_with_vlcvln) | |
| mvexpand todynamic(LoggedOnUsers) | |
| extend ParsedFields = parsejson(LoggedOnUsers) | |
| project UserName = ParsedFields.UserName | |
| summarize makelist(tolower(UserName)); | |
let all_email_addresses_aff_users= | |
IdentityInfo | |
| where tolower(AccountName) in (all_affected_users) | |
| summarize makelist(tolower(EmailAddress)); | |
EmailAttachmentInfo | |
| where FileName contains ".mkv" | |
| where tolower(RecipientEmailAddress) in (all_email_addresses_aff_users) | |
// If these users opened those .mkv files | |
let all_computers_with_vlcvln= | |
DeviceTvmSoftwareInventoryVulnerabilities | |
| where SoftwareName contains "vlc" | |
| summarize makelist(DeviceName); | |
DeviceFileEvents | |
| where DeviceName in (all_computers_with_vlcvln) | |
| where FileName contains "mkv" |