SG11201807964UA - System and methods for decrypting network traffic in a virtualized environment - Google Patents

System and methods for decrypting network traffic in a virtualized environment

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Publication number
SG11201807964UA
SG11201807964UA SG11201807964UA SG11201807964UA SG11201807964UA SG 11201807964U A SG11201807964U A SG 11201807964UA SG 11201807964U A SG11201807964U A SG 11201807964UA SG 11201807964U A SG11201807964U A SG 11201807964UA SG 11201807964U A SG11201807964U A SG 11201807964UA
Authority
SG
Singapore
Prior art keywords
international
pct
virtual machine
memory pages
methods
Prior art date
Application number
SG11201807964UA
Inventor
Radu Caragea
Original Assignee
Bitdefender Ipr Man Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bitdefender Ipr Man Ltd filed Critical Bitdefender Ipr Man Ltd
Publication of SG11201807964UA publication Critical patent/SG11201807964UA/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
    • H04L63/0428—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/50—Monitoring users, programs or devices to maintain the integrity of platforms, e.g. of processors, firmware or operating systems
    • G06F21/55—Detecting local intrusion or implementing counter-measures
    • G06F21/56—Computer malware detection or handling, e.g. anti-virus arrangements
    • G06F21/566—Dynamic detection, i.e. detection performed at run-time, e.g. emulation, suspicious activities
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F12/00—Accessing, addressing or allocating within memory systems or architectures
    • G06F12/02—Addressing or allocation; Relocation
    • G06F12/08—Addressing or allocation; Relocation in hierarchically structured memory systems, e.g. virtual memory systems
    • G06F12/10—Address translation
    • G06F12/1009—Address translation using page tables, e.g. page table structures
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/44—Arrangements for executing specific programs
    • G06F9/455—Emulation; Interpretation; Software simulation, e.g. virtualisation or emulation of application or operating system execution engines
    • G06F9/45504—Abstract machines for programme code execution, e.g. Java virtual machine [JVM], interpreters, emulators
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/06—Network architectures or network communication protocols for network security for supporting key management in a packet data network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/16—Implementing security features at a particular protocol layer
    • H04L63/166—Implementing security features at a particular protocol layer at the transport layer
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/14—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols using a plurality of keys or algorithms
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/30—Public key, i.e. encryption algorithm being computationally infeasible to invert or user's encryption keys not requiring secrecy
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
    • H04L9/3247—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials involving digital signatures
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
    • H04L9/3247—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials involving digital signatures
    • H04L9/3249—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials involving digital signatures using RSA or related signature schemes, e.g. Rabin scheme
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
    • H04L9/3263—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials involving certificates, e.g. public key certificate [PKC] or attribute certificate [AC]; Public key infrastructure [PKI] arrangements
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2212/00—Indexing scheme relating to accessing, addressing or allocation within memory systems or architectures
    • G06F2212/15—Use in a specific computing environment
    • G06F2212/154—Networked environment

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Software Systems (AREA)
  • Computer Hardware Design (AREA)
  • Computing Systems (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Virology (AREA)
  • Storage Device Security (AREA)
  • Computer And Data Communications (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property -, Organization 11111111011110111010101111101011111011101011101110111110111101111101111011111 International Bureau 0.. .... .. ..... ..... (10) International Publication Number (43) International Publication Date WO 2017/174418 Al 12 October 2017(12.10.2017) WIPO I PCT (51) International Patent Classification: AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, GOOF 21/56 (2013.01) BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FL GB, GD, GE, GH, GM, GT, (21) International Application Number: HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KH, KN, PCT/EP2017/057422 KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, (22) International Filing Date: MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, 29 March 2017 (29.03.2017) NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, (25) Filing Language: English TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, (26) Publication Language: English ZA, ZM, ZW. (30) Priority Data: (84) Designated States (unless otherwise indicated, for every 62/317,804 4 April 2016 (04.04.2016) US kind of regional protection available): ARIPO (BW, GH, 15/471,981 28 March 2017 (28.03.2017) US GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, (71) Applicant: BITDEFENDER IPR MANAGEMENT TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, LTD [CY/CY]; Kreontos 12, 1076 Nicosia (CY). DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, (72) Inventor: CARAGEA, Radu; Ale. Emil Botta nr. 3 bl. M105 sc.1 et.6 ap. 25, Sector 3, 031073 Bucuresti (RO). SM, TR), OAPI (BF, BJ, CF, CG, CL CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). (74) Agent: TULUCA, Doina; Bd. Lacul Tei 56, bl. 19, sc. B, Published: ap. 52, sector 2, 020392 Bucuresti (RO). — with international search report (Art. 21(3)) (81) Designated States (unless otherwise indicated, for every kind of national protection available): AE, AG, AL, AM, _ (54) Title: SYSTEM AND METHODS FOR DECRYPTING NETWORK TRAFFIC IN A VIRTUALIZED ENVIRONMENT 32 Guest virtual machine 36a 36b 44 pp App. 1 -- 1 I h , 01. I 34 agent Guest OS L — — J 30 Hypervisor Introspection engine Network filter 42 11 12 (lent system hardware GC 40 1-1 FIG. 3 71' 71' IN 1-1 ----. (57) : Described systems and methods enable a decryption of encrypted communication between a client system and a re - IN mote party, for applications such as detection and analysis of malicious software, intrusion detection, and surveillance, among oth - C ers. The client system executes a virtual machine and an introspection engine outside the virtual machine. The introspection engine ei is configured to identify memory pages whose contents have changed between a first session event (e.g., a ServerHello message) and O a second session event (e.g., a ClientFinished message). The respective memory pages are likely to contain encryption key material for the respective communication session. A decryption engine may then attempt to decrypt an encrypted payload of the respective communication session using information derived from the content of the identified memory pages.
SG11201807964UA 2016-04-04 2017-03-29 System and methods for decrypting network traffic in a virtualized environment SG11201807964UA (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201662317804P 2016-04-04 2016-04-04
US15/471,981 US10116630B2 (en) 2016-04-04 2017-03-28 Systems and methods for decrypting network traffic in a virtualized environment
PCT/EP2017/057422 WO2017174418A1 (en) 2016-04-04 2017-03-29 System and methods for decrypting network traffic in a virtualized environment

Publications (1)

Publication Number Publication Date
SG11201807964UA true SG11201807964UA (en) 2018-10-30

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SG11201807964UA SG11201807964UA (en) 2016-04-04 2017-03-29 System and methods for decrypting network traffic in a virtualized environment

Country Status (13)

Country Link
US (2) US10116630B2 (en)
EP (1) EP3440584B1 (en)
JP (1) JP6857193B2 (en)
KR (1) KR102041584B1 (en)
CN (1) CN108885665B (en)
AU (1) AU2017247547B2 (en)
CA (1) CA3018021C (en)
ES (1) ES2827007T3 (en)
HK (1) HK1257399A1 (en)
IL (1) IL261826B (en)
RU (1) RU2738021C2 (en)
SG (1) SG11201807964UA (en)
WO (1) WO2017174418A1 (en)

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Publication number Publication date
US10257170B2 (en) 2019-04-09
EP3440584A1 (en) 2019-02-13
JP2019516294A (en) 2019-06-13
IL261826B (en) 2021-02-28
CA3018021A1 (en) 2017-10-12
US10116630B2 (en) 2018-10-30
CN108885665A (en) 2018-11-23
KR20180129830A (en) 2018-12-05
KR102041584B1 (en) 2019-11-06
CA3018021C (en) 2021-12-28
IL261826A (en) 2018-10-31
AU2017247547A1 (en) 2018-10-11
JP6857193B2 (en) 2021-04-14
CN108885665B (en) 2022-04-08
ES2827007T3 (en) 2021-05-19
HK1257399A1 (en) 2019-10-18
RU2018132840A3 (en) 2020-06-17
EP3440584B1 (en) 2020-07-29
US20170289109A1 (en) 2017-10-05
RU2018132840A (en) 2020-05-12
WO2017174418A1 (en) 2017-10-12
RU2738021C2 (en) 2020-12-07
AU2017247547B2 (en) 2021-07-08
US20190068561A1 (en) 2019-02-28

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