Lurid
Enfal, also referred to in the provided content as Lurid, is a malware family/ecosystem associated with Chinese cyber-espionage activity. The content links Lurid/Enfal usage to multiple Chinese threat actors, including PittyTiger, APT15, and APT27, and also lists Enfal among tools used by BRONZE UNION/APT27 (aka Emissary Panda, Budworm, Iron Tiger, Lucky Mouse, TG-3390, Temp.Hippo). Reported capabilities include XOR encryption for command-and-control or data handling and compression of data before transmission. The content also describes Zero.T as a loader from the Enfal ecosystem, discovered in late 2016, which after persistence downloaded three BMP images from a C2 server and extracted Enfal modules hidden in the least significant bits of image pixels. Those BMP files appeared visually normal and reportedly passed corporate DPI without alerts, illustrating steganographic payload delivery within the Enfal ecosystem. High-confidence behavioral details in the content therefore include use of steganography via BMP LSB embedding, module extraction by a loader, XOR encryption, and compression prior to sending data. The content does not provide additional specific victimology, industries, or standalone IOCs for Enfal itself beyond the actor associations and the steganographic BMP delivery mechanism.
Hunt this family in your stack
Mallory pivots from this family to the IOCs, detections, and named campaigns that touch your stack, and pages you when something new lands.
Groups observed using it
1 distinct threat actor attributed by public researchers. Open in Mallory to see the full evidence chain and overlapping campaigns.
Tools: Sysupdate, China Chopper, OwaAuth, ZxShell, Gh0st RAT, PoisonIvy, Hunter, PlugX, Enfal, HttpBrowser, 9002, ASPXSpy, HyperBro
Techniques & procedures
3 distinct techniques documented for this family, organized by ATT&CK tactic.
Stealth
1 techniqueDefense Evasion. Загрузчик скачивает стего-контейнер с легитимного или скомпрометированного хоста. Работают сразу две техники: Steganography (T1027.003) для обфускации пейлоада...
Collection
1 technique"AppleSeed has compressed collected data before exfiltration."; "APT28 used a publicly available tool to gather and compress multiple documents..."; "Aria-body has used ZIP to compress data..."; "Cadelspy...compress stolen data into a .cab file."; "Daserf hides collected data in password-protected .rar archives."; "FIN6 has compressed log files into a ZIP archive prior to staging and exfiltration."; "Lazarus Group has compressed exfiltrated data with RAR...archive specified directories in .zip format"; "XCSSET will compress entire ~/Desktop folders..."
Command and Control
1 technique"3PARA RAT command and control commands are encrypted within the HTTP C2 channel using the DES algorithm in CBC mode..."; "APT33 has used AES for encryption of command and control traffic."; "Carbanak encrypts the message body of HTTP traffic with RC2 (in CBC mode)."; "Duqu ... data stream can be encrypted with AES-CBC."; "PoisonIvy uses the Camellia cipher to encrypt communications."
Recent activity
9 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Экосистема вредоносных модулей, чьи компоненты доставлялись через BMP-контейнеры со стеганографией.
Malware family referenced as used by multiple Chinese threat actors and linked via historical infrastructure/registrant patterns.
A named tool in BRONZE UNION’s toolkit; specific functionality is not described in the provided content.
Backdoor that uses XOR-based encryption/obfuscation.
The version that knows your environment.
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.