|
本帖最后由 MaverickZ 于 2022-1-14 23:42 编辑 3 R+ h7 u2 {- Y
- P0 S( X* w. ^% C. }% d; j5 Z
6 d% R% S' p4 F9 V. u% C双向信号放大器, 放大汽车和钥匙的信号, 让车以为钥匙在车边.
* g0 n' S m; \' u0 M! ~/ J* `0 q我现在是用faraday case钥匙包装钥匙, 回家把车钥匙扔那种铁皮的饼干盒里。
. W, Q$ V0 n0 K: H我见过最搞笑的是买了宜家一种类似俄罗斯套娃的3层金属盒,把车钥匙放在最里面那个小盒子里, 实测屏蔽信号效果超一流.
! _* j) D" a2 f( P- Nhttps://www.thatcham.org/relay-attack/8 m$ X3 Z8 d; N- j, G. u; c; l! I
What is Relay Theft?" P8 N& y2 A; b
+ e2 P* _$ Q+ c# H
Relay theft exploits a vulnerability in passive keyless entry systems, which allow drivers to open and start their cars without removing the keyless fob from their pocket.5 ? M- O( l& j7 o1 g. Q/ P
. e) u2 p( S& W- g6 H4 S5 _
Operating in pairs, one criminal holds a device up against the car door, amplifying the signal it broadcasts around the perimeter of the vehicle. Another stands near the front wall or porch of a home, with a device that relays the key’s signal back to his accomplice.
6 ^: d: `# u* r; n0 i% G7 d: a0 y2 E3 L6 u
The car is effectively fooled into believing that the owner is within a defined range (usually two metres) and is approaching the car with their key. The door opens, and the signal is relayed a second time, starting the engine. Once started, the engine will not restart without the key present.
, t, ^8 D8 A" \
& D) N; S! l( D+ V: n3 d |
|