Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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Use this query to locate emails with subject indicators of a reply or forward, and the attachment is a .doc, or a .zip containing a .doc. Review results for suspicious emails.
IcedId can lead to ransomware
IcedId can lead to ransomware
This query visualises the original detection technology of emails submitted as spam false positive by admins
This query visualises the top admins performing false negative submissions
This query helps in checking the sender-recipient contact establishment status
In this detection approach, we correlate email from non-prevalent senders in the organization with impersonation intents
This query visualises total inbound emails with Malware detections summarizing the data by the top email sender P2 domain (SenderFromDomain)
This query visualises total inbound emails with Malware detections summarizing the data by the top recipient email address (RecipientEmailAddress)
This query visualises total emails with Phish detections over time summarizing the data daily by Delivery Location.
This query visualises total emails with Phish detections summarizing the data by various Phish detection technologies/controls
LemonDuck is an actively updated and robust malware primarily known for its botnet and cryptocurrency mining objectives. First discovered in 2019, LemonDuck has since adopted more sophisticated behavior and escalated its operations in 2021. Today, beyond using resources for its traditional bot and mining activities, LemonDuck steals credentials, removes security controls, spreads via emails, moves laterally, and ultimately drops more tools for human-operated activity.
Qakbot operators have been abusing the Craigslist messaging system to send malicious emails. These emails contain non-clickable links to malicious domains impersonating Craigslist, which the user is instructed to manually type into the address bar to access.
These queries was originally published in the threat analytics report, Attacks on gov't, think tanks, NGOs.
As described further in Analysis of cyberattack on U.S. think tanks, non-profits, public sector by unidentified attackers, there was a very large spear-phishing campaign launched in November 2019.
The attackers would gain access to a target by having the user click on a link to a compromised website and download a .zip archive.
Once established on a target's device, the attackers used a malicious DLL named cyzfc.dat to execute additional payloads. They would call a function in the malicious DLL via the legitimate Windows process, rundll32.exe, to connect directly to their command-and-control (C2) servers.
The following queries detect activity associated with the malicious DLL, cyzfc.dat., used in this campaign.
Reference - https://docs.microsoft.com/windows-server/administration/windows-commands/rundll32
As described further in Analysis of cyberattack on U.S. think tanks, non-profits, public sector by unidentified attackers, there was a very large spear-phishing campaign launched in November 2019.
The attackers would gain access to a target by having the user click on a link to a compromised website and download a .zip archive.
Once established on a target's device, the attackers used a malicious DLL named cyzfc.dat to execute additional payloads. They would call a function in the malicious DLL via the legitimate Windows process, rundll32.exe, to connect directly to their command-and-control (C2) servers.
The following queries detect activity associated with the malicious DLL, cyzfc.dat., used in this campaign.
Reference - https://docs.microsoft.com/windows-server/administration/windows-commands/rundll32
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/
Use this query to locate emails and malicious downloads related to the IcedId activity that can lead to ransomware
This query visualises the daily amount of admin false positive submission by submission type.
This query helps reviewing mail that is likely a reply but there is no history of the people chatting and the domain is new
This query helps reviewing count of total ZAP events
This query helps report daily on total number of emails, total number of emails detected aby Defender for Office 365
Check if file hashes published in the recent abuse.ch feed are found in your mail flow scanned by Office 365 ATP.
This query visualises all emails submitted as false positive by admins summarizing by the original filter verdict threat type
This query helps reviewing zero day threats via URL and file detonations
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