Canada ranks second with 1,235 addresses (7%), and the United Kingdom ranks third with 1,227 IP addresses of infected computers (6.9% of the total). Most of them-4,610 (representing 26.1% of the total)-reside in the United States. Information collected by Doctor Web's researchers shows that as of September 26, 2014, 17,658 IP addresses of infected devices were involved in the botnet created by hackers using.
While establishing a connection to the server whose address is picked from the list using a special routine, the backdoor attempts to determine whether the server address is on the exceptions list and engages in a data exchange with the server to employ special routines for authenticating the remote host. Search requests to acquire the list are sent to in five-minute intervals.
The bot picks a random server from the first 29 addresses on the list and sends queries to each of them. The search returns a web page containing a list of botnet C&C servers and ports published by criminals in comments to the post minecraftserverlists under the account vtnhiaovyd. It is worth mentioning that in order to acquire a control server address list, the bot uses the search service at, and-as a search query-specifies hexadecimal values of the first 8 bytes of the MD5 hash of the current date. It sends a request to a remote site to acquire a list of control servers, and then connects to the remote servers and waits for instructions. Then opens a port on an infected computer and awaits an incoming connection.
#Reddit mac internet security mac os x#
If ‘unwanted’ directories can't be found, the bot uses system queries to determine the home directory of the Mac OS X account under which it is running, checks the availability of its configuration file in the directory, and writes the data needed for it to continue to operate into the file. When is initially launched, it saves its configuration data in a separate file and tries to read the contents of the /Library directory to determine which of the installed applications the malware won't be interacting with. During installation it is extracted into /Library/Application Support/JavaW, after which the dropper generates a p-list file so that the backdoor is launched automatically. It should also be noted that the backdoor makes extensive use of encryption in its routines. A statistical analysis indicates that there are more than 17,000 unique IP addresses associated with infected Macs.Ĭriminals developed this malware using C++ and Lua. Criminals can issue commands that get this program to carry out a wide range of instructions on the infected machines. One of them turned out to be a complex multi-purpose backdoor that entered the virus database as.
In September 2014, Doctor Web's security experts researched several new threats to Mac OS X.
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