IISpy
Aliases: BadIIS
- First seen
- 2020-06-15 00:00:00
- Malware type
- webshell, spyware
- Family
- Malware family
- Profile updated
- 2026-07-07 13:14:25
Targeted industries: government-and-public-sector technology-and-telecommunications
Targeted regions: country_code:cn country_code:ru
Context
IISpy, also known as BadIIS, is a sophisticated webshell and spyware that targets IIS web servers. It is known for its stealth and ability to persist on compromised systems to exfiltrate sensitive data.
Detection coverage
- 2 YARA rules
Detection rules
- ESET_IIS_Group07_Iispy (yara-rule)
- MALPEDIA_Win_Iispy_Auto (yara-rule)
Reports & references
- Cisco Talos — Dragon Rank Seo Poisoning (report)
- Cisco Talos — Uat 8099 Chinese Speaking Cybercrime Group Seo Fraud (report)
- malpedia.caad.fkie.fraunhofer.de — Win.Iispy (report)
- ESET — Iispy Complex Server Side Backdoor Antiforensic Features (report)