(19)
(11) EP 4 740 360 A1

(12)

(43) Date of publication:
13.05.2026 Bulletin 2026/20

(21) Application number: 24705663.3

(22) Date of filing: 15.02.2024
(51) International Patent Classification (IPC): 
H04L 9/40(2022.01)
G06F 21/56(2013.01)
 G06F 21/55(2013.01)
(52) Cooperative Patent Classification (CPC):
G06F 21/566; G06F 21/554; H04L 63/1416; H04L 63/1491
(86) International application number:
PCT/EP2024/053879
(87) International publication number:
WO 2025/171875 (21.08.2025 Gazette 2025/34)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA
Designated Validation States:
GE KH MA MD TN

(71) Applicant: Huawei Technologies Co., Ltd.
Shenzhen, Guangdong 518129 (CN)

(72) Inventors:
  • ARAZI, Ron
    80992 Munich (DE)
  • DAVID, David
    80992 Munich (DE)
  • BIRMAN, Yoni
    80992 Munich (DE)

(74) Representative: Gill Jennings & Every LLP 
The Broadgate Tower 20 Primrose Street
London EC2A 2ES
London EC2A 2ES (GB)

   


(54) METHOD AND APPARATUS OF INVESTIGATING A RANSOMWARE ATTACK ON A NETWORK DEVICE DURING RUNTIME