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3 Hardware Trojans in Electronic Devices
and other equipment; nevertheless, if you establish a data transmission channel, this
communication will work.
But the main advantage of the device lies in the fact that no secret service or
competitor will be able to listen to your conversations regardless of their location, as
the speech is encrypted in your phone and decrypted only in your interlocutor’s phone.
However, functioning of such principle of encrypted voice transmission requires the
operators to support the BS26T service, which is not always the case.
Even though it is supported by nearly all operators in the world, a part of Latin
America, Asia, and Australia are the exceptions. For the purpose of protection against
imposition of special SMS messages, which put the phone in audio monitoring mode,
you need to perfectly understand the circuit design of the device and its software.
The keys are extremely important in this technique; they are loaded into the phone
from the disk with the help of a computer; the computer must not be connected to
the Internet, and Wi-Fi has to be blocked at all times. Session encryption key is
composed of two keys: a fixed key, which is downloaded from the disk with the help
of a computer (this key is changed once a year), and a random key generated by the
phone for each communication session. The random key is changed every time, and
the previous keys are physically deleted from memory after disconnection; therefore,
you don’t have to worry: even after recovering a fixed key, no one will be able to
reproduce your conversations.
3.3.6.6 Methods of Introducing Trojans into a Mobile Phone
According to the results of the poll [18] on the popular site 4PDA, a quarter of all
readers have faced Android-based malware. How could it be that so many users
stumble across Trojans and other malware if Google always deletes suspicious
programs from the market? 4PDA contacted security specialists to find out what
malware can be found on an Android smartphone and what information is sought by
virus writers.
In order to understand the scale of mobile malware, let us consider the statistics
for 2016 presented by Dr.Web analysts:
• 50, 000, 000 download the application TouchPal with aggressive ads from Google
Play;
• The Trojan Android.Spy.277.origin was downloaded from Google Play 3, 200,
000 times;
• 2, 800, 000 users downloaded 155 applications with the Trojan
Android.Spy.305.origin from Google Play;
• 1, 000, 000 users downloaded the infected application Multiple accounts from
Google Play.
Several representatives of these statistics can be messing around your smartphone
right now. Google states that every OS update fixes another hole in the system. What
is actually happening?
3 Hardware Trojans in Electronic Devices
and other equipment; nevertheless, if you establish a data transmission channel, this
communication will work.
But the main advantage of the device lies in the fact that no secret service or
competitor will be able to listen to your conversations regardless of their location, as
the speech is encrypted in your phone and decrypted only in your interlocutor’s phone.
However, functioning of such principle of encrypted voice transmission requires the
operators to support the BS26T service, which is not always the case.
Even though it is supported by nearly all operators in the world, a part of Latin
America, Asia, and Australia are the exceptions. For the purpose of protection against
imposition of special SMS messages, which put the phone in audio monitoring mode,
you need to perfectly understand the circuit design of the device and its software.
The keys are extremely important in this technique; they are loaded into the phone
from the disk with the help of a computer; the computer must not be connected to
the Internet, and Wi-Fi has to be blocked at all times. Session encryption key is
composed of two keys: a fixed key, which is downloaded from the disk with the help
of a computer (this key is changed once a year), and a random key generated by the
phone for each communication session. The random key is changed every time, and
the previous keys are physically deleted from memory after disconnection; therefore,
you don’t have to worry: even after recovering a fixed key, no one will be able to
reproduce your conversations.
3.3.6.6 Methods of Introducing Trojans into a Mobile Phone
According to the results of the poll [18] on the popular site 4PDA, a quarter of all
readers have faced Android-based malware. How could it be that so many users
stumble across Trojans and other malware if Google always deletes suspicious
programs from the market? 4PDA contacted security specialists to find out what
malware can be found on an Android smartphone and what information is sought by
virus writers.
In order to understand the scale of mobile malware, let us consider the statistics
for 2016 presented by Dr.Web analysts:
• 50, 000, 000 download the application TouchPal with aggressive ads from Google
Play;
• The Trojan Android.Spy.277.origin was downloaded from Google Play 3, 200,
000 times;
• 2, 800, 000 users downloaded 155 applications with the Trojan
Android.Spy.305.origin from Google Play;
• 1, 000, 000 users downloaded the infected application Multiple accounts from
Google Play.
Several representatives of these statistics can be messing around your smartphone
right now. Google states that every OS update fixes another hole in the system. What
is actually happening?