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This query was originally published in the threat analytics report, RDP ransomware persists as Wadhrama.
The ransomware known as Wadhrama has been used in human-operated attacks that follow a particular pattern. The attackers often use Remote Desktop Protocol (RDP) to gain initial access to a device or network, exfiltrate credentials, and maintain persistance.
The following query checks for possible Wadhrama-related activity, by searching for attempts to establish RDP persistance via the registry.
Other techniques used by the group associated with Wadhrama are listed under See also.
Reference - https://www.microsoft.com/wdsi/threats/malware-encyclopedia-description?Name=Ransom:Win32/Wadhrama
The ransomware known as Wadhrama has been used in human-operated attacks that follow a particular pattern. The attackers often use Remote Desktop Protocol (RDP) to gain initial access to a device or network, exfiltrate credentials, and maintain persistance.
The following query checks for possible Wadhrama-related activity, by searching for attempts to establish RDP persistance via the registry.
Other techniques used by the group associated with Wadhrama are listed under See also.
Reference - https://www.microsoft.com/wdsi/threats/malware-encyclopedia-description?Name=Ransom:Win32/Wadhrama
These queries check telemetry from the Exploit Guard rule: Rule: Block Office applications from creating child processes.
(Rule ID d4f940ab-401b-4efc-aadc-ad5f3c50688a).
Read more about it here: https://docs.microsoft.com/windows/security/threat-protection/windows-defender-exploit-guard/attack-surface-reduction-exploit-guard.
Oftentimes organizations enable this rule in audit mode and check the results before setting block mode.
You can use query #2 to measure the rule impact on your network in audit mode before turning it to block mode.
Query #1 is used after setting it to block mode - to analyze the block stats.
Tags: #ASR.
Query #1: block stats.
(Rule ID d4f940ab-401b-4efc-aadc-ad5f3c50688a).
Read more about it here: https://docs.microsoft.com/windows/security/threat-protection/windows-defender-exploit-guard/attack-surface-reduction-exploit-guard.
Oftentimes organizations enable this rule in audit mode and check the results before setting block mode.
You can use query #2 to measure the rule impact on your network in audit mode before turning it to block mode.
Query #1 is used after setting it to block mode - to analyze the block stats.
Tags: #ASR.
Query #1: block stats.
Get stats on ExploitGuard blocks - count events and machines per rule.
Identify dllhost.exe using WMIC to discover additional hosts and associated domain.
Use this query to find emails with message IDs that resemble IDs used in known attack emails and contain a link a document in Google Docs. These behaviors have
been observed leading to ransomware attacks.
been observed leading to ransomware attacks.
This query checks for attempts to stop at least 10 separate processes using the net stop command. Run query
This query helps reviewing top 100 senders in your organization in last 30 days
In this detection,we use Email reported by user as malware or phish MDO alert as a starting point to identify the scope of a campaign.
This query helps reviewing top targeted users with malware or phishing emails in an organization in last 30 days
The following queries pivot from an IP address assigned to a machine to the relevant machine or logged-on users.
To read more about it, check out this post: https://techcommunity.microsoft.com/t5/What-s-New/Advanced-hunting-now-includes-network-adapters-information/m-p/224402#M74.
Query #1: get machines that have used a given local IP address at a given time - as configured on their network adapters.
To read more about it, check out this post: https://techcommunity.microsoft.com/t5/What-s-New/Advanced-hunting-now-includes-network-adapters-information/m-p/224402#M74.
Query #1: get machines that have used a given local IP address at a given time - as configured on their network adapters.
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