- File system check exit code is 8 high sierra serial#
- File system check exit code is 8 high sierra driver#
However, worms don't need to attach to another piece of code to reproduce (unlike a virus). create a new copy of itself on the penetrated system."
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Ransomware is often delivered via drive-by-downloads or embedded in other software delivered via email Worm Worms are similar to viruses in that they try to "penetrate networks and computer systems. Attacker demands a sum of money before they decrypt the data or unlock the computer for the user Ransomware -Specific type of trojan where attackers encrypt the users data or take control of the computer and lock the user out This leaves the files unusable, sometimes permanently, sometimes until a ransom is paid in cryptocurrency (which would make it ransomware as well). Crypto-malware crypto-malware is malware that encrypts files on a system (without being authorized to do so). The book later differentiates worms from viruses by saying that viruses need human interaction to spread. TERMS IN THIS SET (13) Viruses A virus is a piece of malicious code that "replicates itself by attaching itself to another piece of executable code." When that executable code is run, the virus can spread and/or perform other malicious actions. Classes of Devices and modules Char module, block module, and network module +4 more terms
File system check exit code is 8 high sierra serial#
dev/console and the serial ports /dev/ttyS0 and friends are examples of char devices.
File system check exit code is 8 high sierra driver#
Such a driver usually implements at least the open, close, read, and write system calls.
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Character devices A character device is one that can be accessed as a stream of bytes (like a file) a char driver is in charge of implementing this behavior. In most Unix systems, a block device can only handle I/O operations that transfer one or more whole blocks, which are usually 512 bytes (or a larger power of two) bytes in length. A block device is a device that can host a filesystem. Block devices Like char devices, block devices are accessed by filesystem nodes in the /dev directory. TERMS IN THIS SET (8) Network interface Any network transaction is made through an interface, that is, a device that is able to exchange data with other hosts.Ī network interface is in charge of sending and receiving data packets, driven by the network subsystem of the kernel, without knowing how individual transactions map to the actual packets being transmitted.