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MalwareUsed by 2 actors

eHorus

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THREAT ACTORS

Groups observed using it

2 distinct threat actors attributed by public researchers. Open in Mallory to see the full evidence chain and overlapping campaigns.

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MuddyWater

Remote monitoring and management software called eHorus

via microsoft generalmicrosoft.com
MuddyCoast

"UNC3313 download and execute a Windows Installer file for the eHorus remote access tool... created a service named EHORUSAGENT."

via mandiant threat intelligencecloud.google.com
MITRE ATT&CK

Techniques & procedures

2 distinct techniques documented for this family, organized by ATT&CK tactic.

Initial Access

1 technique
T1133External Remote ServicesEvidence1

Use of commercial remote access applications: The initial foothold on victims emerges via commercially available remote access applications.

Persistence

1 technique
T1133External Remote ServicesEvidence1

Use of commercial remote access applications: The initial foothold on victims emerges via commercially available remote access applications.

Lateral Movement

1 technique
T1021Remote ServicesEvidence1

download and execute a Windows Installer file for the eHorus remote access tool... created a service named EHORUSAGENT... ehorus_agent.exe communicates with domains hosted on ehorus[.]com

ACTIVITY FEED

Recent activity

2 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.

2 SOURCESView more in app
What this page doesn’t show

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IOC matching

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Threat actor attribution2

Named campaigns wielding this family, with evidence pinned to each claim.

Exploited vulnerabilities

CVEs this family uses for access and lateral movement.

Detection signatures

YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.

MITRE ATT&CK mapping2

Every documented technique, ranked by evidence weight.

Researcher chatter

Reddit, Mastodon, and CTI community discussion around this family.