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Mallory pivots from this family to the IOCs, detections, and named campaigns that touch your stack, and pages you when something new lands.
4 CVEs Mallory has correlated with this family across public research and vendor advisories. Each row links to the full Mallory page for that vulnerability.
The vulnerabilities being targeted, which Microsoft has since issued patches for, are CVE-2021-26855, CVE-2021-26857, CVE-2021-26858 and CVE-2021-27065. These vulnerabilities were reported on March 2, 2021 and affect Microsoft Exchange Server versions 2013, 2016 and 2019. They have been leveraged by multiple threat actors targeting Microsoft Exchange servers around the world.
The vulnerabilities being targeted, which Microsoft has since issued patches for, are CVE-2021-26855, CVE-2021-26857, CVE-2021-26858 and CVE-2021-27065... For example, in late April 2021, another cryptocurrency mining botnet, Prometei, was reported to be exploiting two of the aforementioned Exchange Server vulnerabilities (CVE-2021-27065 and CVE-2021-26858) which allowed the attackers to achieve remote code execution on the host.
The vulnerabilities being targeted, which Microsoft has since issued patches for, are CVE-2021-26855, CVE-2021-26857, CVE-2021-26858 and CVE-2021-27065... For example, in late April 2021, another cryptocurrency mining botnet, Prometei, was reported to be exploiting two of the aforementioned Exchange Server vulnerabilities (CVE-2021-27065 and CVE-2021-26858) which allowed the attackers to achieve remote code execution on the host.
The vulnerabilities being targeted, which Microsoft has since issued patches for, are CVE-2021-26855, CVE-2021-26857, CVE-2021-26858 and CVE-2021-27065. These vulnerabilities were reported on March 2, 2021 and affect Microsoft Exchange Server versions 2013, 2016 and 2019. They have been leveraged by multiple threat actors targeting Microsoft Exchange servers around the world.
2 distinct techniques documented for this family, organized by ATT&CK tactic.
2 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Another cryptocurrency miner mentioned as also using infrastructure in Exchange post-exploitation activity.
A coin-mining related threat observed after Exchange server exploitation, involving PowerShell downloaders and infrastructure linked to a mining campaign.
Match every observed IP, domain, and hash against your live telemetry.
Named campaigns wielding this family, with evidence pinned to each claim.
CVEs this family uses for access and lateral movement.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Every documented technique, ranked by evidence weight.
Reddit, Mastodon, and CTI community discussion around this family.