H04L2463/146

Lateral movement path detector

A lateral movement path detector is disclosed. Data is gathered via programmatic access to a management service director through a REST API endpoint. The data is grouped into a graph having nodes of users, groups, and devices. The nodes coupled together via edges. A visualization of the graph is provided to illustrate lateral paths of the management service directory.

Forensically Analysing and Determining a Network Associated with a Network Security Threat

The present disclosure concerns a computer-implemented method for forensically analysing and determining a network associated with a network security threat. The method comprises: obtaining details of a flagged network event comprising data associated with a network security threat, the network event being between a first dataset and a destination dataset; tracing the data associated with the network security threat from the first dataset to a further dataset, the tracing involving obtaining details of at least one past network event between the first dataset and the further dataset; comparing details of the further dataset to predefined criteria to identify whether the further dataset is an intermediate dataset or a source dataset from which the data originated and adding the details of the further dataset to a forensic report; outputting the forensic report.

NETWORK ATTACK IDENTIFICATION, DEFENSE, AND PREVENTION

The disclosure provides an approach for detecting and preventing attacks in a network. Embodiments include receiving network traffic statistics of a system. Embodiments include determining a set of features of the system based on the network traffic statistics. Embodiments include inputting the set of features to a classification model that has been trained using historical features associated with labels indicating whether the historical features correspond to attacks. Embodiments include receiving, as output from the classification model, an indication of whether the system is a target of an attack. Embodiments include receiving additional statistics related to the system. Embodiments include analyzing, in response to the indication that the system is the target of the attack, the additional statistics to identify a source of the attack. Embodiments include performing an action to prevent the attack based on the source of the attack.

LEVERAGING NETWORK SECURITY SCANNING TO OBTAIN ENHANCED INFORMATION REGARDING AN ATTACK CHAIN INVOLVING A DECOY FILE
20210409446 · 2021-12-30 · ·

Systems and methods for identifying a source of an attack chain based on network security scanning events triggered by movement of a decoy file are provided. A decoy file is stored on a deception host deployed by a deception-based intrusion detection system (IDS) within a private network. The decoy file contains therein a traceable object that is detectable by network security scanning performed by multiple network security devices protecting the private network. Information regarding an attack chain associated with an access to the decoy file or a transmission of the decoy file through the one or more network security devices is received by the deception-based IDS from the one or more network security devices. The information is created responsive to detection of a security incident by the network security scanning. Finally, an Internet Protocol (IP) address of a computer system that originated the attack chain is determined.

Method and system for detecting abnormal online user activity
11212301 · 2021-12-28 · ·

The present teaching generally relates to detecting abnormal user activity associated with an entity. In a non-limiting embodiment, baseline distribution data representing a baseline distribution characterizing normal user activities for an entity may be obtained. Information related to online user activities with respect to the entity may be received, distribution data representation a dynamic distribution may be determined based, at least in part, on the information. One or more measures characterizing a difference between the baseline distribution and the dynamic distribution may be computed, and in real-time it may be assessed whether the information indicates abnormal user activity. If the first information indicates abnormal user activity, then output data including the distribution data and the one or more measures may be generated.

Systems and methods for polluting phishing campaign responses

Techniques for polluting phishing campaign responses with content that includes fake sensitive information of a type that is being sought in phishing messages. Embodiments disclosed herein identify phishing messages that are designed to fraudulently obtain sensitive information. Rather than simply quarantining these phishing messages from users' accounts to prevent users from providing “real” sensitive information, embodiments disclosed herein analyze these phishing messages to determine what type(s) of information is being sought and then respond to these phishing messages with “fake” sensitive information of these type(s). For example, if a phishing message is seeking sensitive credit card and/or banking account information, some fake information of this type(s) may be generated and sent in response to the phishing message. In various implementations, a natural language processing (NLP) model may be used to analyze the phishing message and/or generate a response thereto.

NOVEL DNS RECORD TYPE FOR NETWORK THREAT PREVENTION
20210392162 · 2021-12-16 ·

A method for identifying a source of network attack by proving an autonomous system number record (ASN record) that includes an IP address, a public autonomous system number (public ASN), and a private autonomous system number (private ASN). The public ASN and the private ASNs can be unique randomly generated combination of numbers. The IP address and the public ASN can be incorporated in the network packets for tracking a route of the network packets in a network.

Bus-off attack prevention circuit

Various systems and methods for bus-off attack detection are described herein. An electronic device for bus-off attack detection and prevention includes bus-off prevention circuitry coupled to a protected node on a bus, the bus-off prevention circuitry to: detect a transmitted message from the protected node to the bus; detect a bit mismatch of the transmitted message on the bus; suspend further transmissions from the protected node while the bus is analyzed; determine whether the bit mismatch represents a bus fault or an active attack against the protected node; and signal the protected node indicating whether a fault has occurred.

Automated Detection of Cross Site Scripting Attacks
20220210180 · 2022-06-30 ·

Embodiments detect cross site scripting attacks. An embodiment captures a web request and captures a response to the captured web request. In turn, it is determined if one or more elements associated with the captured web request and one or more elements of the captured response, in combination, cause a malicious action. A cross site scripting attack is then declared in response to determining the one or more elements associated with the captured web request and the one or more elements of the captured response, in combination, cause a malicious action. Embodiments can take one or more protection actions in response to declaring a cross site scripting attack.

Systems and methods for debugging network stacks based on evidence collected from selective tracing

A disclosed method may include (1) determining that a packet traversing a network device has been selected for conditional tracing by (A) comparing a characteristic of the packet against a firewall rule that calls for all packets exhibiting the characteristic to be conditionally debugged while traversing the network device and (B) determining, based at least in part on the comparison, that the firewall rule applies to the packet due at least in part to the packet exhibiting the characteristic, (2) tracing a journey of the packet within the network device in response to the determination by collecting information about the packet's journey through a network stack of the network device, and then (3) performing at least one action on the network device based at least in part on the information collected about the packet's journey through the network stack. Various other systems, methods, and computer-readable media are also disclosed.