
"װ ̾."
ý , SKڷ ڵ ̿ڵ ҾȰ ǰ ȥ ̾ ִ 籹 ħػ ľǰ Ŀ .
̹ SKڷ ܹȸ ŷٴ Ⱓ ϰ ġϰ غ APT(advanced persistent threat; Ӱ) ִ.
APT Ư Ÿ ð ϰ ġϰ ϴ ̹ Ѵ. ˷ (ε) ڵ, ̰ų ϴ ȸ ý۰ ü踦 Ѵ.
̹ Ÿ SKڷ ƴ ̶ Ѵ. ڿ ״ ̾ ո ȭǰ ݿ ȿ ϱ ؼ ٺ ü迡 ñϴٰ .
ϰ APT ݡ"Ŀ , Դ 1 ̻ ẹ "
бź ΰյ , SKڷ Ŀ HSS(ڰ) о ȭȣ, ڽĺŰ(IMSI) 25 Ż Ȯεƴ.
SKڷ Ϸ 5ܰ վ ϴµ, Ŀ ̸ ܰ ȸ HSS 3 ߴ.
Ŀ ħ ϰ ߴ. ܿ , Ŀ SKڷ η ħϴµ BPF(Berkeley Packet Filter Door) 迭 Ǽڵ 4 ߴ. ü BPF ǿ 鵵.
BPF Ʈũ ϰų ɷ ̴ , Ŀ ̸ ȭ ȸ η ϰ ְ ߴ.
ܺο ְ '' ϴ Ʈ ϴµ, Ʈ ʰ š ־ Ȯεƴ. SKڷ ħθ Ȯ ־ٴ .
ܱⰣ ̷ ħػٴ Ŀ ּ PC Ǽڵ带 ġϴ ħ õϰ ẹ ִ ֿ ý Żϴ APT ݼ ɼ Ը ư ִ.
Ǽڵ ۵ư, ý ο ħߴ μ . Ŀ ý ħ ܰ躰 ' ' õߴ ˷.
ִб ̹ "鵵 ġ ħ ̾ " ߴ.
α "SKڷ ̹ ħػ ܱⰣ ϱ ʴ"鼭 " ó ۼ . ħ Ⱓ Ƽ ʵ ɼ ũ" ߴ.
ϰ Ʈũ ý ü ǻ Ұϴٴ ڸ ϴ Ҽ ɼ ٴ ǰߵ ִ.
ߴ Ӽ µ ü ٲ
̹ ü Ȯ ٲ Ѵٰ .
SKڷ ħη Ȱ BPF Ǽڵ Ʈ ȭ̳ ñ״ó α üδ Ž Ұߴ.
ťŸ ǥ "ô Ƚýδ ֽ Ȥ " "ֱ ̹ ܼ ñ״ó Ž ȸϴ Ѿ, Ŀ , ȣȭ , Ʈ(portless) 鵵 ȭǰ ִ" ߴ.
ǽð Ϳ Ž α ̻ ¡ м, Ŀ Ž ü ִ Ž ü谡 ñϴٰ Ҵ.
̸ ܼ ֿ νġ漱 Ž ̾ з ȯ ʿϴٰ Ѵ.
ü å ٲ ƴٴ ̴.
"ֱó ŷ յ Ȳ δ ƴ" ߴ.
ü谡 κ ǹװ å üũ Ʈ ־, ϴ ̹ Ѱ谡 ִٴ ſԴ ̴.
̵ ǰ ϴ ӹٴ .
ȣȣ ü(ISMSISMS-P) ȿ ִ.
ISMSISMS-P бźο ȣȸ ְϴ , ý ϴ ÿ ȣȭ üũѴ. ̵ SKڷ ϴ б ǰ ִ. ռ Ŀ շ ȸ и Z, LG ȹ ̴.
ȸ бȸ Ʊ ǿ(Ҿִ) ̹ SKڷ ŷ "ISMSISMS-P ˰ ȭ ʿϴ" " ŷ ֵ ȿ ȣ ü ŵ쳪 "̶ ߴ.
ڴ "Ȼ , Ȥ ̵ ؼߴ Ŀ ó ڰ ɵ ü踦 ¥ ִ" " Ӱ ü踦 ߵ ϵ, ó ȭϴ з ٲ ʿ䰡 ִ" ߴ.
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