International Business Machines Corporation

Lenovo (singapore) Pte. Ltd.

Kevin David Himberger

Clark Debs Jeffries

Mohammad Peyravian

Robert W Danford

John Fred Davis

Benjamin Michael Parees

Alan David Boulanger

Garreth J Jeremiah

Jake Palmer

Raj Kumar Singh

Terry Dwain Escamilla

John Ziraldo

Charles Steven Lingafelt

Allen Leonid Roginsky

Joseph Franklin Garvey

David M McMillen

Phillip Singleton

Brian Edward Carpenter

As disclosed herein, a computer program product, executed by a computer, includes receiving, from a user, a request for access to a shared system, wherein the request comprises a user identifier and a user password corresponding to the user, and determining privileges corresponding to the shared system using the user identifier. The computer program product further includes requesting, from an identity manager, a shared identifier and a shared password corresponding to the shared system, receiving, from the identity manager, the shared identifier and the shared password, and using the shared identifier and the shared password to enable the user to use the shared system.

Indirect user authentication

As disclosed herein a computer system, executed by a computer, includes receiving, from a user, a request for access to a shared system, wherein the request comprises a user identifier and a user password corresponding to the user, and determining privileges corresponding to the shared system using the user identifier. The computer system further includes requesting, from an identity manager, a shared identifier and a shared password corresponding to the shared system, receiving, from the identity manager, the shared identifier and the shared password, and using the shared identifier and the shared password to enable the user to use the shared system.

A method, system, and/or computer program product manages a distributed denial of service attack in a multiprocessor environment. A determination is made of (a) a first upper threshold for a normal number of packets from the multiprocessor environment to multiple destination addresses, (b) a second upper threshold for a normal ratio of the packets from the multiprocessor environment to a single destination address compared to the packets from the multiprocessor environment to the multiple destination addresses, and (c) a third upper threshold for a normal ratio of packets from the multiprocessor environment to a single port at a single destination address compared to packets from the multiprocessor environment to the multiple destination addresses. In response to the first and second thresholds being exceeded, a specific port is monitored to determine if the third upper threshold is being exceeded at that port, thus indicating an apparent distributed denial of service attack.

Managing a DDoS attack

As disclosed herein a method, executed by a computer, includes receiving, from a user, a request for access to a shared system, wherein the request comprises a user identifier and a user password corresponding to the user, and determining privileges corresponding to the shared system using the user identifier. The method further includes requesting, from an identity manager, a shared identifier and a shared password corresponding to the shared system, receiving, from the identity manager, the shared identifier and the shared password, and using the shared identifier and the shared password to enable the user to use the shared system. A computer system, and a computer program product corresponding to the above method are also disclosed herein.

Managing e-mails from a source suspected of sending spam. The e-mails are received at a firewall or router en route to a mail server. A determination is made whether a source has sent an e-mail which exhibits characteristics of spam. In response, subsequent e-mails from the source destined for the mail server are rate-limiting at the firewall or router such that the firewall or router limits a rate at which the subsequent e-mails are forwarded from the firewall or router to the mail server. The rate limit can be a limit on a number of e-mails per unit of time from the source that will be forwarded from the firewall or router to the mail server.

System, method and program to limit rate of transferring messages from suspected spammers

A system, method and program product for blocking unwanted e-mails. An e-mail is identified as unwanted. A source IP address of the unwanted e-mail is determined. Other source IP addresses owned or registered by an owner or registrant of the source IP address of the unwanted e-mail are determined. Subsequent e-mails from the source IP address and the other IP addresses are blocked. This will thwart a spammer who shifts to a new source IP address when its spam is blocked from one source IP address.

System, method and computer program to block spam

A method of, system for, and product for managing a denial of service attack in a multiprocessor environment comprising. The first step is establishing normal traffic usage baselines in the multiprocessor environment. Once the baseline is established the next step is monitoring outgoing traffic to detect a high proportion of packets being sent to a specific destination address, and a high number of outbound packets compared to said baseline. Next is monitoring ports and protocols to detect a high proportion of packets sent to a specific port, and a consistent use of a protocol for all packets for that port. If there is such consistent use of a protocol for all packets for that port as to evidence a denial of service attack, blocking measures are started to mitigate the apparent denial of service attack.

Detection of grid participation in a DDoS attack

A system and method to protect web applications from malicious attacks and, in particular, a system and method for identification and blocking of malicious DNS servers. The system includes a central processing unit and first program instructions. The first program instructions identify a rogue Domain Name Service (DNS) by identifying that a DNS metric is outside a historical limit. The first program instructions are stored on the computer system for execution by the central processing unit.

System and method for identification and blocking of malicious use of servers

A system, method and program product for managing e-mails from a source suspected of sending spam. The e-mails are received at a firewall or router en route to a mail server. A determination is made whether a source has sent an e-mail which exhibits characteristics of spam. In response, subsequent e-mails from the source destined for the mail server are rate-limiting at the firewall or router such that the firewall or router limits a rate at which the subsequent e-mails are forwarded from the firewall or router to the mail server. The rate is predetermined and less than a maximum rate at which the firewall or router can physically forward e-mails to the mail server absent the rate limit. A determination is made whether another source has sent another e-mail which exhibits more characteristics of spam than the first said e-mail. In response, subsequent e-mails from this other source are blocked at the firewall or router. The rate limit can be a limit on a number of e-mails per unit of time from the source that will be forwarded from the firewall or router to the mail server.

A solution for computing password strength based upon layout positions of input mechanisms of an input device that entered a password. A password including an ordered sequence of at least two characters can be identified. A position of each of the characters of the sequence can be determined relative to a layout of an input device used for password entry. Each position can correspond to an input region (key) of the input device (keyboard). A proximity algorithm can generate a proximately score for the determined positions based upon a pattern produced by the positions given the layout of the input device. A password strength score can be computed based at least in part upon the proximity score.

Calculating a password strength score based upon character proximity and relative position upon an input device

A detection and response system including a set of algorithms for detecting within a stream of normal computer traffic a subset of (should focus on network traffic eliciting a response) TCP or UDP packets with one IP Source Address (SA) value, one or a few Destination Address (DA) values, and a number exceeding a threshold of distinct Destination Port (DP) values. A lookup mechanism such as a Direct Table and Patricia search tree record and trace sets of packets with one SA and one DA as well as the set of DP values observed for the given SA, DA combination. The detection and response system reports the existence of such a subset and the header values including SA, DA, and multiple DPs of the subset. The detection and response system also includes various administrative responses to reports.

Automatically detecting distributed port scans in computer networks

A router includes a relatively low bandwidth communication connection to a small computer, a relatively high bandwidth communication connection to a communication network; and a processing unit for executing in the router a set of permit rules for permitting flow of communication packets with respect to the connections for user initiated sessions, the permit rules including a default rule for discarding all packets with respect to the small computer in traffic not pertaining to sessions initiated by the small computer.

System and method for detection and mitigation of distributed denial of service attacks

A detection and response system that generates an Alert if unauthorized scanning is detected on a computer network that includes a look-up table to record state value corresponding to the sequence in which SYN, SYN/ACK and RST packets are observed. A set of algorithms executed on a processing engine adjusts the state value in response to observing the packets. When the state value reaches a predetermined value indicating that all three packets have been seen, the algorithm generates an Alert.

Automatically detecting malicious computer network reconnaissance by updating state codes in a histogram

System and method for tracking inventory of a multiplicity of products. First RFID tags are associated with respective products or groups of products. Second Active RFID tags are associated with respective first containers for the multiplicity products. A third Active RFID tag is associated with a second container for the first containers. First RFID tags broadcast their respective identifications. Second Active RFID tags hash the identities of the first RFID tags within their respective first containers and broad their hashed values. Third Active RFID tag hash the hashed values broadcast by the second Active RFID tags. An expected value is compared to a result of the third Active RFID tag hashing the hashed values broadcast by the second Active RFID tags.

System and method to track inventory using RFID tags

A technique for tracking one or more thresholds relating to the blocking of a particular screen name used on an IM system is disclosed. If the number of people who have blocked a particular screen name reaches a threshold amount, a determination is made that the screen name is being used by a spimmer or other bothersome person, and disciplinary action can be taken. In a preferred embodiment, the email address associated with a user name of a suspected spimmer is identified and all screen names associated with that email address are also subjected to disciplinary action, if desired. Thus, an IM company can suspend all screen names of a spimmer that are tied to the same email address, even though not all (or even none) of the screen names individually have reached a threshold level for discipline/suspension.

Growing community of inventors

Durham, NC, United States of America

Kevin David Himberger