Investigation on the EmEditor Supply Chain Cyberattack
A recent supply chain attack targeting EmEditor users has been uncovered, involving watering hole tactics. The investigation reveals multiple domains masquerading as EmEditor-related sites, all registered through NameSilo LLC in December 2025. The domains resolve to various IP addresses, with some changes observed in February 2026. Additional domains with similar patterns were discovered, along with peculiar HTTP header behavior. A potential early stage of the campaign was identified, sharing similar characteristics with the initial report. The attackers continued their activities even after exposure, utilizing PowerShell scripts and various domains for command and control purposes. The analysis provides a comprehensive list of indicators, including domain names, IP addresses, and file hashes associated with the attack.
Pulse ID: 6989f4a0761d0f153bbb94e4
Pulse Link: https://otx.alienvault.com/pulse/6989f4a0761d0f153bbb94e4
Pulse Author: AlienVault
Created: 2026-02-09 14:52:16
Be advised, this data is unverified and should be considered preliminary. Always do further verification.
#CyberAttack #CyberSecurity #HTTP #ICS #InfoSec #OTX #OpenThreatExchange #PowerShell #RAT #SupplyChain #bot #AlienVault







