Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
1,735 detections
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This query helps reviewing incoming email messages where the Display Name of the sender contains own or other partner company/brand name
This query shows information about high confidence phish email that has been released from the Quarantine.
This query helps to find threats using display name impersonation for users not already protected with User Impersonation
Hunting for credential phishing using the "Referral" infrastructure using Defender for Office 365 data
'Alerts in links that have been shared across multiple Zoom chat channels by the same user in a short space if time.
Adjust the threshold figure to change the number of channels a message needs to be posted in before an alert is raised.'
Adjust the threshold figure to change the number of channels a message needs to be posted in before an alert is raised.'
This query helps reviewing sender IPs sending malicious email of type Malware or Phish
Provides a summary of total number of detections
This query visualises total emails with Phish detections over time summarizing the data daily.
Query for links opened from mail apps - if a detection occurred right afterwards.
As there are many links opened from mails, to have a successful hunt we should have some filter or join with some other signal,.
Such as suspicious processes, network connections, etc.
Therefore, in this example, we query for alerts that might be related to links sent via email.
This could be indicative of a phishing or spear-phishing attacks.
Tags: #EmailLink, #Phishing, #GetNearbyAlerts.
Explaining the underlying data:.
This query uses the BrowserLaunchedToOpenUrl event, that includes clicks on http:// or https:// links (clicks outside of browsers), or on .lnk files.
For this event, RemoteUrl contains the opened URL.
As there are many links opened from mails, to have a successful hunt we should have some filter or join with some other signal,.
Such as suspicious processes, network connections, etc.
Therefore, in this example, we query for alerts that might be related to links sent via email.
This could be indicative of a phishing or spear-phishing attacks.
Tags: #EmailLink, #Phishing, #GetNearbyAlerts.
Explaining the underlying data:.
This query uses the BrowserLaunchedToOpenUrl event, that includes clicks on http:// or https:// links (clicks outside of browsers), or on .lnk files.
For this event, RemoteUrl contains the opened URL.
This query correlates Microsoft Defender for Office 365 signals and Microsoft Entra ID identity data to find the relevant endpoint event BrowerLaunchedToOpen in Microsoft Defender ATP.
This event reflects relevant clicks on the malicious URL in the spear-phishing email recognized by Microsoft Defender for Office 365.
This event reflects relevant clicks on the malicious URL in the spear-phishing email recognized by Microsoft Defender for Office 365.
This query identifies when a user clicks a link that opens a browser to navigate to a URL
which uses redirection. It then filters out any redirections to URLs in the same DNS namespace
as the originating URL. Redirection identification is done based on URL query parameters
outlined in the following article: https://www.bleepingcomputer.com/news/security/snapchat-amex-sites-abused-in-microsoft-365-phishing-attacks/
which uses redirection. It then filters out any redirections to URLs in the same DNS namespace
as the originating URL. Redirection identification is done based on URL query parameters
outlined in the following article: https://www.bleepingcomputer.com/news/security/snapchat-amex-sites-abused-in-microsoft-365-phishing-attacks/
Fake Replies
KQL
Use this query to find spoofed reply emails that contain certain keywords in the subject. The emails are also checked for a link to a document in Google Docs.
These attacks have been observed leading to ransomware
These attacks have been observed leading to ransomware
This query helps reviewing list of top users click on Phis URLs
This query visualises total inbound emails with Phish detections summarizing the data by the top email sender P2 domain (SenderFromDomain).
Identify prior activity from this campaign using IOCs shared by Microsoft's Threat Intelligence Center, or MSTIC.
Read more: https://blogs.microsoft.com/on-the-issues/2020/10/28/cyberattacks-phosphorus-t20-munich-security-conference/
Read more: https://blogs.microsoft.com/on-the-issues/2020/10/28/cyberattacks-phosphorus-t20-munich-security-conference/
This query visualises the total amount of admin false positive submissions by the state of the submission.
In this detection, we track emails with personalized subjects.
Bazacall malware uses emails that contain a phone number for the user to call in order to cancel a fake subscription. These emails contain no links or attachments, and use automatic payment lures to trick users into contacting the number included in the email.
Snip3 is a family of related remote access trojans. Although the malware in this family contain numerous small variations, they all exhibit similar behaviors and techniques.
The following query looks for keywords observed in emails involved in a Snip3-associated campaign in April and May of 2021. The emails often have an aviation theme, and the campaign primarily targets organizations involved in travel or aviation. Note that keywords may change overtime. These emails were used to send malicious legitimate hosting provider links that redirected to VBS documents hosting loaders. The loaders initiate RevengeRAT or AsyncRAT downloads that eventually establish persistence on targets and exfiltrate data.
The following query looks for keywords observed in emails involved in a Snip3-associated campaign in April and May of 2021. The emails often have an aviation theme, and the campaign primarily targets organizations involved in travel or aviation. Note that keywords may change overtime. These emails were used to send malicious legitimate hosting provider links that redirected to VBS documents hosting loaders. The loaders initiate RevengeRAT or AsyncRAT downloads that eventually establish persistence on targets and exfiltrate data.
This query helps reviewing malicious email detections by detection methods
This query helps reviewing count of users attacked more than x times average.
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