The Experts below are selected from a list of 15 Experts worldwide ranked by ideXlab platform
Dan Blanchette - One of the best experts on this subject based on the ideXlab platform.
-
tmpdir stata module to indicate the Directory stata is using for a Temporary Directory
Statistical Software Components, 2011Co-Authors: Dan BlanchetteAbstract:tmpdir is designed for programmers who want to know what Directory Stata writes temp files to. This can be helpful when using the file command to write intermediary files for a program. Since spaces in Directory names can cause problems for programs running in Windows operating system, tmpdir replaces Directory / subDirectory names that contain spaces, or optionally any name longer than 8 characters, with the first 6 non-space characters plus "~1" or "~2" (up to "~4"). After that it gets a bit crazy with hexadecimal replacements. Tmpdir shells out to DOS and finds the short Directory name that DOS has come up with, so there's no attempt to guess the short name. This makes it possible to use this program on many different versions of Windows and always get the short name right. Tmpdir works on all operating systems.
J. Blasco - One of the best experts on this subject based on the ideXlab platform.
-
Unveiling a spearphishing campaign and possible ramifications - Alienvault Labs
The Vault, 2012Co-Authors: J. BlascoAbstract:This article technically analyzes an ongoing spear phishing attack against a company that makes Industrial Control Systems (ICS). These types of systems are increasingly targeted by attackers as they were often originally built with functionality rather than security in mind, and they can do actual damage in the physical world, beyond a computer network. This is part of a series of attacks that were profiled by the Washington Post previously in this paper. Due to their level of sophistication, it is often speculated that nation-states are behind these attacks. The email contained a link that was ostensibly an Adobe Acrobat PDF, but was actually a compressed ZIP file. Once extracted, the file ended in “.pdf.exe” which is an obvious giveaway to a security professional, but may go unnoticed by a layperson. Running the executable does indeed display the PDF, but also extracts a file named spoolsvr.exe to a Temporary Directory – a name of an actual operating system file. Then the file is set to run on startup. Once the file is run, it downloads a configuration file from another compromised server. This has directions for downloading the actual malware, tanghl.exe. It downloads and runs that file, which is a known RAT. The machine is now completely compromised. The RAT connects to an international command and control server. The command and control server has also been compromised. One of the ip addresses used by the RAT is related to the RSA attack detailed earlier in this paper. By connecting the dots on these attacks, profiles begin to emerge which may be useful in fending off future attacks.
Hideharu Amano - One of the best experts on this subject based on the ideXlab platform.
-
design and evaluation of the cache coherent multistage interconnection network with Temporary Directory
Electronics and Communications in Japan Part Ii-electronics, 2006Co-Authors: Takashi Midorikawa, Masato Sumiyoshi, Yasuki Tanabe, Hideharu AmanoAbstract:Although cache control mechanisms for use in multiprocessors that use a multistage interconnection network (MIN) as the interconnecting network have been proposed in which a Directory or the cache itself is built into the switches in the MIN, the structure of the switches in these methods have been complex and there therefore remains room for improvement. Our research group has therefore proposed a MIN with Directory cache switch (MINDIC) that implements cache control by only building small- capacity Directory caches into the switches. This paper reports on the results of evaluating MINDIC using a clock level simulator. The results reveal that MINDIC is able to achieve a level of cache control efficiency that is equal to that of a full map Directory management scheme by setting the number of entries in the MINDIC Directory caches to approximately 2048 entries. The results also show that the amount of memory required for the Directory can be greatly reduced by MINDIC. © 2006 Wiley Periodicals, Inc. Electron Comm Jpn Pt 2, 89(9): 11–23, 2006; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/ecjb.20301
Takashi Midorikawa - One of the best experts on this subject based on the ideXlab platform.
-
design and evaluation of the cache coherent multistage interconnection network with Temporary Directory
Electronics and Communications in Japan Part Ii-electronics, 2006Co-Authors: Takashi Midorikawa, Masato Sumiyoshi, Yasuki Tanabe, Hideharu AmanoAbstract:Although cache control mechanisms for use in multiprocessors that use a multistage interconnection network (MIN) as the interconnecting network have been proposed in which a Directory or the cache itself is built into the switches in the MIN, the structure of the switches in these methods have been complex and there therefore remains room for improvement. Our research group has therefore proposed a MIN with Directory cache switch (MINDIC) that implements cache control by only building small- capacity Directory caches into the switches. This paper reports on the results of evaluating MINDIC using a clock level simulator. The results reveal that MINDIC is able to achieve a level of cache control efficiency that is equal to that of a full map Directory management scheme by setting the number of entries in the MINDIC Directory caches to approximately 2048 entries. The results also show that the amount of memory required for the Directory can be greatly reduced by MINDIC. © 2006 Wiley Periodicals, Inc. Electron Comm Jpn Pt 2, 89(9): 11–23, 2006; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/ecjb.20301
Masato Sumiyoshi - One of the best experts on this subject based on the ideXlab platform.
-
design and evaluation of the cache coherent multistage interconnection network with Temporary Directory
Electronics and Communications in Japan Part Ii-electronics, 2006Co-Authors: Takashi Midorikawa, Masato Sumiyoshi, Yasuki Tanabe, Hideharu AmanoAbstract:Although cache control mechanisms for use in multiprocessors that use a multistage interconnection network (MIN) as the interconnecting network have been proposed in which a Directory or the cache itself is built into the switches in the MIN, the structure of the switches in these methods have been complex and there therefore remains room for improvement. Our research group has therefore proposed a MIN with Directory cache switch (MINDIC) that implements cache control by only building small- capacity Directory caches into the switches. This paper reports on the results of evaluating MINDIC using a clock level simulator. The results reveal that MINDIC is able to achieve a level of cache control efficiency that is equal to that of a full map Directory management scheme by setting the number of entries in the MINDIC Directory caches to approximately 2048 entries. The results also show that the amount of memory required for the Directory can be greatly reduced by MINDIC. © 2006 Wiley Periodicals, Inc. Electron Comm Jpn Pt 2, 89(9): 11–23, 2006; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/ecjb.20301
