My Airport Express has been hacked by unknown neighbor

Dear Guys, Help me.

My Airport Express has been hacked by unknown neighbor.

I do have some researches on internet (Macrumors) about how to secure my AP, but my China neighbor (I am long-term stay TW staff in China) still can break in my network.

1st, I found someone named "Mac XXX" under the SHARED section in the sidebar, so I immediately upgraded my security as follows;

A. Enable MAC address filtering, allow my Macbook ,my wife's Macbook and iPhone only.

B. Stop broadcasting signal (click closed network).

C. Upgrade password level from WPA (8-12 digits) to WPA2 (31 digits, random).

But unfortunately, after couples hours, I still found his name on my sidebar........

How can he did it so quickly????? how can I stop him forever?????

Pls help me.........Thanks for your prompt advice.
說不定他是有有線的部份下手的

不是從無線的地方下手

把Airport的預設密碼改掉試看看
James wrote:
說不定他是有有線的部...(恕刪)

AIRPORT EXPRESS 有線的部份是....?
1.改密碼
2.鎖mac address
不太可能, 因為我設定Airport Express 時,把Lan (China telecom) 拔掉了,但是他還是break in 成功. 而且我已把 base station password 改成 31 digits random.
Tim Kuo
鎖MAC 隱藏SSID 還能hack...

最新的Airport軔體更新試看看

不久前看diggnation有提到
有一種軟體(無線分享器的),可以將你指定以外而連結到你無線網路的電腦,瀏覽網頁的圖片全部都上下顛倒
也許這種功能可以嚇阻他人盜連你的網路
我已經忘記是什麼了,或許01有高人可以推薦
C'est La Vie! 法文「這就是人生啊!」
Pls help me a little. my wife said I spent almost couples hours on Mac when I get off the duty at home, I still can't stop my neighbor break in my network.
Tim Kuo
tkpmg wrote:
Pls help me a little. my wife said ....

請就事論事,不要用這種「可能會引起某些人的爭議」的形容詞~

幾個可能性的分析:
1. 其實根本是你連到他的無線網路去了!
以前據說很流行這套,故意設定同樣的SSID,吸引你連過去,然後側路一些網路資訊。
2. 請問原PO是用OSX還是windows?
如果是用windows的話,不排除你的電腦早就被裝木馬or後門了!請徹底檢查....
其實OSX也是有可能被感染惡意程式啦(如果那個人真的這麼有心)....
3. 你確定「側邊欄出現MAC xxx分享」就真的是被入侵的嗎?
會不會是你自己電腦分享出去的設定啊?沒記錯的話,Vmware的虛擬電腦,也會在分享區看到喔!
1. Sorry for my improper wording on that, let's get back to the main topic.
2. My AP has been hijacked by my unknown neighbor twice, that means I couldn't use my password to log in my network, therefore, I have no choice resetting my airport Express again to recover my authority. Obviously, my neighbor is really up to no good.
3. As I mentioned before, I used Mac all the time.
4. My IT colleague said hiding SSID is easy to break through, it's also quite easy to 'spoof' the MAC address of a legitimate machine on you network, and don't even mention about breaking my WPA/WPA2 password.
5. So... do I have to surrender?

Tim Kuo
tkpmg wrote:
2. My AP has been hijacked by my unknown neighbor twice, that means I couldn't use my password to log in my network, therefore, I have no choice resetting my airport Express again to recover my authority. Obviously, my neighbor is really up to no good.
3. As I mentioned before, I used Mac all the time.
4. My IT colleague said hiding SSID is easy to break through, it's also quite easy to 'spoof' the MAC address of a legitimate machine on you network, and don't even mention about breaking my WPA/WPA2 password.


對不起,因為你這邊的說詞,與你一開始的描述差很多... 所以必須請你重新確認一下~
而且既然你有輸入中文的能力,我不曉得為什麼你偏偏要用英文描述你的狀況?
是因為你假設「看的懂英文的人,才能幫助解決你的問題」嗎?

我先問幾個假設性問題...
如果這你這邊說的編號2,他在入侵你的AE之後,馬上就修改了密碼,讓你不能「log in my network」。到底你這邊的network是指無線網路還是AE後臺啊?
如果你連網路都連不上了,又何來看到「分享」?

簡單的說,以一般管道想要hack你的AE控制,至少要想辦法取得兩個密碼:無線網路密碼與AE密碼(從有線端入侵的可能性這邊先不考慮)。
你該不會這兩個密碼是一樣的吧?有蠻多人所有設定的密碼都是同一個.....

WPA系列的密碼已經很難破了,不過前提也是在「你使用的密碼字串必須夠亂」
如果你使用WPA,但是密碼仍然是用「12345678」,那仍然很容易被解出來....

鎖MAC的確是很有效的方法,雖然說修改自己網卡的MAC並不是難事,但想這樣子突破你的封鎖,前提也是要「他知道你的MAC」。
如果你真的想跟他玩到底,你就也換個MAC之後,鎖新MAC。這樣他能try出新MAC碼的機會應該是很低很低.....

AE密碼被得知,是我比較訝異的地方。假設原PO你不是用預設的密碼、且此密碼也與無線網路密碼不同的話,那這種入侵我真的還是第一次看到。或許是有啥類似BIOS萬用密碼之類的,如過真的是這樣子,那大概除了換一台AP以外無解。

------------------------

話說回來,從你這一連串的描述,因為他知道你太多細節了....
如果你每次做「upgraded my security」時,都有使用不同的密碼、且差異夠大的話....
他等於是必須要知道1.你新設的SSID(還是隱藏的) 2.你新設的無線網路密碼 3.你新設的AE後臺密碼 4.你的MAC address
而且這些東西必須在「couples hours」內取得!

所以這樣說吧!我認為那根本不是啥unknown neighbor啊!應該是你有接觸過的人!
因為如果要滿足上述快速取得資料的條件...
我判斷你電腦已經被安裝木馬或keylogger的可能性非常高!

雖然我已經詢問你是使用何作業系統,而你的回答是Mac all the time....
雖然我不知道你的MAC是跑OSX還是windows啦.....(反正都是MAC all the times)
windows那邊的我就不提,不過OSX這邊可是也有keylogger的唷!
只是如果像是原PO這麼在意安全性的話,我想被誤導安裝keylogger的可能性應該不高....
所以應該就是那位neighbor在某些情況時,能接觸到你的電腦,進而偷偷幫你安裝的吧!

-------------------
再提供一個最簡單的防護措施
「調低AE的發射功率!」
話說雖然是無線網路,但是你使用的範圍其實並不會那麼大吧?
取你平常會使用的最大範圍,盡可能的把功率調低....
這樣子可以很有效的避免被不三不四的人連接的可能性。

哪天你發現再你家窗口,有個人用筆電在偷偷摸摸的時候....
恭喜你!你找到unknown neighbor了!
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