Mallory pivots from this family to the IOCs, detections, and named campaigns that touch your stack, and pages you when something new lands.
1 CVE Mallory has correlated with this family across public research and vendor advisories. Each row links to the full Mallory page for that vulnerability.
Threat actors weaponized CVE-2026-73570, an unauthenticated operating-system command injection flaw in Zimbra Collaboration Suite, to deploy web shells, obtain mailbox and authentication data, establish persistence, and attempt data exfiltration. The flaw was patched in Zimbra version 10.1.20. | In at least one campaign, the attackers have been found to use a lightweight shell downloader for a Zimdown2 Go binary that then acts as an installer for the Zimclient2 remote-access agent.
3 distinct techniques documented for this family, organized by ATT&CK tactic.
4 indicators attributed across vendor reports, sandbox runs, and researcher write-ups. Full values are available in Mallory.
IPs, domains, and DNS infrastructure linked to this family.
File hashes (MD5, SHA-1, SHA-256) from samples and reports.
2 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A Go-based binary deployed as a lightweight shell downloader/installer for the Zimclient2 remote-access agent on compromised Zimbra servers.
A Go-based multi-stage installer/downloader that retrieves, verifies, deploys, and reports the installation status of the zimclient2 remote-access agent.
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.