20美亚杯个人赛
20美亚杯个人赛
案例背景
2020年9月,数名信用卡持有人向警方报案,指他们的信用卡被不知名人士在一家本地网上商店购买手机。订单大部分来自海外的网络地址,但有一宗订单来自本地。警方经调查后发现该本地网络地址的注册地址。上门后在该处发现陈慧贤,她否认与案件有关。
警方在现场检获一部笔记本计算机、一部手提电话及一个外置储存装置。在场的初步应变小队在检取证物前,曾为现场环境及证物拍照。另外, 调查队伍亦由网络供货商及网上商店取得了一些与案有关的资料。现在你被委派处理这宗案件, 请由以下的资料分析陈慧贤在本案中有否犯罪, 还原事件经过。
1.Alice的笔记本计算机已成功被取证并制作成镜像(Forensic Image), 下列哪个是镜像的SHA-1哈希值?
A:9A3040D8DE7DB364AA383F9904C446B2;
B:7DED54774B68058E5B327907DB2AC40AAA2EEB48;
C:E84854774B68058E5B327907DBAAC40AAA2E7OED;
D:EB4854774B68058E5B327907DB2AC40AAA2E7DED;
E:46B29A3040D8DE7DB364AA383F9904C4
2.Alice的笔记本计算机安装了哪个操作系统(Operating System)?
A:Windows XP;
B:Windows 7;
C:Windows 10 Pro;
D:Windows 10;
E:Windows 8;
3.在Alice的笔记本, 创建用户帐户的SID是甚么?
A:S-1-5-21-1017277147-4095180158-1226650532-1002;
B:S-1-5-21-1017277147-4095180158-1226650532-1001;
C:S-1-5-21-1017277147-4095180158-1226650531-1001;
D:S-1-5-21-1017277147-4095180158-1226650531-1002;
E:S-1-5-21-1017277147-4095180158-1226650533-1001
4.在Alice的笔记本,用户的最后登录时间是甚么时候?(本地时间)
A:2020-09-29 1436 hrs;
B:2020-09-29 1437 hrs;
C:2020-09-29 1439 hrs;
D:2020-09-29 1440 hrs;
E:2020/09/30 10:13
5.在Alice的笔记本,最后登录的用户名称是甚么?
A:Alice;
B:Admin;
C:user;
D:Alice Chen;
E:Administrator
6.Alice计算机的名称是甚么?
A:Alice-DJFFBL6;
B:DESKTOP-DJFFBL6;
C:Admin-DJFFBL6;
D:Alicechen-DJFFBL6;
E:Administrator
7.在Alice的笔记本, 最后登录的用户何时更改了Windows登录密码? (当地时间)
A:2020-09-15 0220 hrs;
B:2020-09-16 0221 hrs;
C:2020-09-16 0223 hrs;
D:2020-09-16 0222 hrs;
E:2020-09-17 0224 hrs
8.Alice笔记本计算机的时区是甚么?
A:UTC;
B:DST;
C:CST;
D:CDT;
E:HKT
9.在Alice的笔记本, OS分区的文件系统是甚么?
A:FAT;
B:exFAT;
C:NTFS;
D:Linux;
E:macOS
10.计算机上预设安装了甚么浏览器?
A:Firefox;
B:Chrome;
C:Safari;
D:Internet Explorer;
E:Opera
11.在Alice的笔记本,哪个是最常用的浏览器?
A:Firefox
B:Chrome
C:Safari
D:Internet Explorer
E:Opera
12.在Alice的笔记本, 最常用的浏览器是甚么版本?
A:Internet Explorer version 6;
B:Internet Explorer version 7;
C:Internet Explorer version 11;
D:Internet Explorer version 8;
E:Internet Explorer version 9
13.在Alice的笔记本, Alice浏览了哪个在线商店的网站?
A:Sunnings, Apple 及 Microsoft;
B:Microsoft, Apple 及 Fortress;
C:Sunnings, Boardway 及 Fortress;
D:Sunnings, Apple 及 Fortress;
E:Sunnings, Apple 及 Boardway
14.在Alice的笔记本, 受害人的信用卡号是甚么?(Ho PCKYI-电子邮件:shy1211@mtzh.gow.tw)
A:3405 0621 0621 7845;
B:5411 2210 0121 7741;
C:1478 2583 1234 8899;
D:7532 2561 1234 9638;
E:1256 9638 5522 7894
15.在Alice的笔记本, 受害人的信用卡CSC号码是甚么(何PCKYI-电子邮件:shy1211@mtzh.gow.tw**)
A:123;
B:321;
C:112;
D:121;
E:211
16.除了上述在USB 找出ZIP文件,请找出相同ZIP文件的路径?
A:Partition 3\Users\Alice\Desktop\Downloads;
B:Partition 3\Users\Alice\Desktop\Temp;
C:Partition 3\Users\Alice\Recent;
D:Partition 3\Users\Alice;
E:Partition 3\Users\Alice\Downloads
17.ZIP文件的哈希值(SHA-256)是甚么?
A:59B88F8755E1F76107D6EE2134ED32BABBC91F0B44C7C0EE3850BBA74B7E88F6;
B:8BF68F8755E1F76107D6EE2134ED32BABBC91F0B44C7C0EE3850BBA73B7EEE77;
C:99F68F8755E1F76107D6EE2134ED32C91F0B44C7C0EE3850BBA74B7E59B8;
D:89F78F8755E1F76107D6EE2134ED32BABBC91F0B44C7C0EE3850CCC74B7E59;
E:88F68F8755E1F76107D6EE2134ED32BABBC91F0B44C7C0EE3850BBA74B7E59B8
18.ZIP文件的修改时间是多少?(当地时间)
A:2020/09/27 18:48;
B:2020/09/01 18:47;
C:2020/09/29 18:46;
D:2020/09/24 18:45;
E:2020/10/01 18:44
19.USB驱动器在Alice笔记本计算机上的最后插入时间是何时?(当地时间)
A:2020-09-28 1800 hrs;
B:2020-09-27 1802 hrs;
C:2020-09-29 1801 hrs;
D:2020-09-16 1803 hrs;
E:2020-09-29 1202 hrs
20.解压的ZIP文件内有哪些文件?
A:log1nx.txt, R3ZZ.txt;
B:WhatsApp Image 2020-09-29 at 18.35.25.jpeg,
WhatsApp Image 2020-09-29 at 18.37.47.jpeg;
C:log1nx.txt;
D:R3ZZ.txt;
E:log1nx.txt, R3ZZ.txt, WhatsApp Image 2020-09-29 at 18.35.25.jpeg, WhatsApp Image 2020-09-29 at 18.37.47.jpeg
21.“ ZIP文件中发票的哈希值(SHA 256)是多少=发票(2)
名称:WhatsApp Image 2020-09-29 at 18.35.25.jpeg”
A:3EE491A38AB82AD19EDB2B7402DA31F52006C3B4B018F859A451B839878DF4C3;
B:C391A38AB82AD19EDB2B7402DA31F52006C3B4B018F859A451B839878D3EE4F4;
C:34E391A38AB82AD19EDB2B7402DA31F52006C3B4B018F859A451B839878D8EE5;
D:F4C391A38AB82AD19EDB2B7402DA31F52006C3B4B018F859A451B839878D3EE4;
E:CCC381A38AB82AD19EDB2B7402DA31F52006C3B4B018F859A451B839878D3BB4
不知道密码,但是当前文件就有这个发票
22.“ ZIP文件中发票的哈希值(SHA 256)是多少=发票(2)
22.“ ZIP文件中发票的哈希值(SHA 256)是多少=发票(2)
名称:WhatsApp Image 2020-09-29 at 18.37.47.jpeg”
A:21F5CC2552A7337844B90F0AB5CDA85BF2F5A71A635E0D3B05731C95937D2DAF;
B:2DAFCC2552A7337844B90F0AB5CDA85BF2F5A71A635E0D3B05731C95937D21F5;
C:20AFCC2552A7337844B90F0AB5CDA85BF2F5A71A635E0D3B05731C95937D21F5;
D:DA2FCC2552A7337844B90F0AB5CDA85BF2F5A71A635E0D3B05731C95937D2LF5;
E:A2AFOO2552A7337844B90F0AB5CDA85BF2F5A71A635E0D3B05731C95937D21F5
23.Alice笔记本计算机上安装了哪种电子邮件软件?
A:Thunderbird;
B:Lotus Notes;
C:Nil;
D:Outlook;
E:Mailbird
24.Alice笔记本计算机上的电子邮件软件的版本是甚么?
A:Thunderbird 78.0;
B:Lotus Notes 11;
C:Nil;D:Outlook 2016;
D:Outlook 2016
E:Outlook 2013
25.Alice笔记本计算机登录电子邮件软件的电子邮件帐户是甚么?
26.Alice在上述电子邮件对话中获得了哪些数据/文件?
A:log1ns.txt, R3ZZ.txt;
B:log1ns.txt;
C:R3ZZ.txt;
D:log1ox.txt, R3ZZ.txt;
E:log1nx.txt, 33Z2.txt
27.该电子邮件的发信者的电子邮件地址是甚么?
D:bobcheung123@gmail.cam;
28.上述已收的电子邮件, 发件人的IP地址是甚么?
A:209.85.220.41;
B:209.85.221.39;
C:209.85.220.40;
D:209.82.220.42;
E:209.58.220.43
29、在笔记本, Alice的电子邮件地址是甚么?
30、除了Alice,还有其他电子邮件地址与该骗局有关吗?
31.哪些人有AP和主脑之间的电子邮件记录?有文件传输吗?
A:Alice and Cole, re log1ns.txt and R3ZZ.txt;
B:Alice and Tommy, re log1ns.txt and R3ZZ.txt;
C:Alice and Bob, re log1ns.txt and R3ZZ.txt;
D:Alice and Chris, re log1ns.txt and R3ZZ.txt;
E:Alice, Bob and Cole, re log1ns.txt and R3ZZ.txt
32.在ZIP 文件中, 有多少受害人的信用卡数据被盗?
A:3;
B:4;
C:5;
D:7;
E:6
33.已被黑客盗用其信用卡资料购买的受害者是谁?
A:TONG TO ON;
B:YUEN MING TIM;
C:TSE KONG LON;
D:TSE WONG YIN;
E:LEE YOI TEI
这里是找了发票的信息
34.被盗用的内容是甚么?
A:Name, ccc code, credit card number;
B:Name, ccc code, HKID;
C:Name, credit card number, aged;
D:Name, credit card number, CSC;
E:Nil
35.Alice的手机型号是甚么?
A:Model:LG-D855(G3 Global);
B:Model:LG-D755(G3 Global);
C:Model:LG;
D:Model:LG-D855(G4 Global);
E:Model:LG-BB55(G3 Global)
36.Alice手机的操作系统版本是甚么?
A:Android 4.0 (security patch=2015-12-01);
B:Android 5.0 (security patch=2015-12-01);
C:Android 7.0 (security patch=2015-12-01);
D:Android 8.0 (security patch=2015-12-01);
E:Android 6.0 (security patch=2015-12-01)
37.Alice手机的总储存空间是多少?
A:64;
B:128;
C:256;
D:16;
E:32
38.在Alice 手机, IMG-20200929-WA0002的创建时间是甚么?(本地时间)
A:2020-08-29 1824;
B:2020-09-29 1824;
C:1970-09-29 1825;
D:2020-09-29 1024;
E:2020-09-02 2224
39.在Alice 手机,IMG-20200929-WA0004的创建时间是甚么?(本地时间)
A:2020-09-29 1825;
B:2020-10-29 1824;
C:1970-09-29 1825;
D:2020-08-29 1024;
E:2020-09-25 1824
40.IMG-20200929-WA0002和IMG-20200929-WA0004的元数据和相机型号是甚么?
A:Manufacturer: LG Electronics, Model: LG-DD55;
B:Manufacturer: Apple, Model: A1687;
C:Manufacturer: LG Electronics, Model: LG-D855;
D:Manufacturer: Samsung, Model: SM-N7105;
E:Manufacturer: MI, Model: MI8
41.在Alice 手机, 预设浏览器浏览历史记录的文件在哪里?
A:\Partition43[hda41]\data\com.android.browser\databases\browser2.db(Mobile Forensics System V2);
B:\Partition40[hda41]\data\com.android.chrome\app_chrome\Default\History(Mobile Forensics System V2);
C:\Partition41[hda41]\data\com.android.chrome\app_chrome\Default\History(Mobile Forensics System V2);
D:\Partition42[hda41]\data\com.android.chrome\app_chrome\Default\History(Mobile Forensics System V2);
E:\Partition44[hda41]\data\com.android.chrome\app_chrome\Default\History(Mobile Forensics System V2)
42.储存Chrome浏览历史记录的文件是甚么?
A:\Partition40[hda41]\data\com.android.browser\databases\browser2.db(Mobile Forensics System V2);
B:\Partition41[hda41]\data\com.android.browser\databases\browser2.db(Mobile Forensics System V2);
C:\Partition42[hda41]\data\com.android.browser\databases\browser2.db(Mobile Forensics System V2);
D:\Partition43[hda41]\data\com.android.chrome\app_chrome\Default\History(Mobile Forensics System V2);
E:\Partition44[hda41]\data\com.android.browser\databases\browser2.db(Mobile Forensics System V2)
43.Alice手机的Whatsapp ID和账户名称是甚么?
44.与Bob和Cole的最后WhatsApp的时间是甚么?(本地时间)
A:2020/9/26 18:47;
B:2020/9/24 10:25;
C:2020/9/25 10:25;
D:2020/9/24 10:20;
E:2020/9/27 10:25
这里说的是群聊消息,不是与单独某个人的
45.主脑的名字是甚么?
A:Chris 及 Tommy;
B:Bob 及 Cole;
C:Bob 及 Tommy;
D:Alice 及 Tommy;
E:Alice 及 Chris
不会
46.Alice,Bob和Cole之间的WhatsApp群组的ID和名称是甚么?
A:62547937-1600392878@g.us “Big Big Club”;
B:8526254-7937-1600392878@g.us;
C:86162547937-1600392878@g.hk “Big Big Club”;
D:62547937-1600392878@g.hk “Big Big Club”;
E:85262547937-1600392878@g.us “Big Big Club”
47.哪一个表,显示了聊天群组“ Big Big Club”的创建时间?(本地时间)
A:Table:chat;
B:Table:chat_list;
C:Table:chat_group;
D:Table:chat-group;
E:Table:chatting_list
48.聊天群组“ Big Big Club”是甚么时候创建的?(本地时间)
A:2020/09/17 10:34;
B:2020/09/18 10:34;
C:2020/09/18 08:35;
D:2020/09/18 07:34;
E:2020/09/18 09:34
49.Alice是否曾经登陆whatsapp网站?如果有的话,她是在何时登入? 所用的是甚么浏览器? (提示:在移动取证图像上找到结果)(UTC +0)
A:No;
**B:**Yes. Windows Edge. 2020-09-29, 18:43:44;
C:Yes. Windows Edge. 2020-09-29, 10:43:44;
D:Yes. Firefox. 2020-09-29, 10:25:44;
E:Yes. Firefox. 2020-09-29, 16:43:44
找到了B但是要将时区换成(UTC+0)
50.Alice如何收到这笔钱?钱包地址是甚么?
A:通过比特币钱包:1L6fKWpEYvUi8FeG6BnXqfh1joAgmJA1h1;
B:通过比特币钱包:2L6fKWpEYvUi8FeG6BnXqfh1joAgmJA1h2;
C:通过比特币钱包:3A6fKWpEYvUi8FeG6BnXqfh1joAgmJAlh1;
D:通过比特币钱包:666fKWpEYvUi8FeG6BnXqfh1joAgmJA1h1;
E:通过比特币钱包:FF6fKWpEYvUi8FeG6BnXqfh1jOAgmJA1h1
51.“Deleted by the sender”的media_wa_type是甚么?
A:14;
B:12;
C:13;
D:15;
E:11
不会
根据“Deleted by the sender”相当于消息被删除,找到群聊中的聊天记录,发现存在着被删除的消息,跳转到源文件之后,将对应的数据库文件(msgstore.db)导出来,使用Sqllite查看:
然后找该时间点
52.Alice手机的Wifi MAC地址是甚么?
A:Intf0MacAddress=000AF58989FF;
B:Intf0MacAddress=0012AF58989FF;
C:Intf0MacAddress=000BF58989FF;
D:Intf0MacAddress=110AF5B989FF;
E:Intf0MacAddress=222AF589B9FF
/etc/wifi/wpa_supplicant.conf文件
53.Alice USB驱动器内的ZIP档案的密码是甚么? (某些字符被刻意用*遮盖)
A:QP*!#80*;
B:Qpzm!@;
C:QP**@!;
D:**98#*;
E:**89#h
调查档案中有A选项
54.Alice USB驱动器内的哪一个程序是用作储存秘密数据?
A:mytracker.apk;
B:com_cleanmaster_mguard_7.4.6_02_09_2020.apk;
C:crypto_aliens_bch_1.0.2_05_11_2020.apk;
D:de_schildbach_wallet_8.03_06_09_2020.apk;
E:Messagesecure.apk
55.打开秘密讯息的密码是甚么? (某些字符被刻意用遮盖)
*A:*89#h;
B:Qpzm!#;
C:QP@#;
D:**98#;
E:*8#9
调查档案中有A选项
56.USB驱动器内,其中一个档案的秘密讯息是甚么? (某些字符被刻意用遮盖)
A:Password is ****;
B:Alice is the mastermind;
C:*****phone pw is ****;
D:Alice and Bob are masterminds;
E:Phone is ********
不会
57.贴在笔记本计算器机上的密码有甚么用途?
A:Alice笔记本电脑的Bitlocker密码;
B:Alice的USB驱动器的密码;
C:Alice的电子银行密码;
D:从文件恢复安全消息;
E:Alice的手机密码
不会
58.Alice USB驱动器内的档案有甚么种类?
A:PNG, ZIP, APK, DOC;
B:PNG, ZIP, APK;
C:PNG, ZIP, APK, 7Z;
D:PNG, DOC, APK, 7Z;
E:PNG, ZIP, DOC, 7Z
59.Alice USB驱动器的哈希值(SHA-256)是甚么?
A:4DFF94ED83F41C356B0588C2C21ECF563E9D8CA66ED6D97A3D57C2629185528D;
B:4DFF528D94ED83F41C356B0588C2C21ECF563E9D8CA66ED6D97A3D57C2629185;
C:94ED83F41C356B0588C2C21ECF563E9D8CA66ED6D97A3D57C26291854DFF528D;
D:528D94ED83F41C356B0588C2C21ECF563E9D8CA66ED6D97A3D57C26291854DFF;
E:51BD94ED83F41C356B0588C2C21ECF563E9D8CA66ED6D97A3D57C26291854OFF
60.在USB驱动器中找到的ZIP文件(Downloads.7z),它的哈希值(SHA-256)是甚么?
A:59B88F8755E1F76107D6EE2134ED32BABBC91F0B44C7C0EE3850BBA74B7E88F6;
B:8BF68F8755E1F76107D6EE2134ED32BABBC91F0B44C7C0EE3850BBA74B7E59BB;
C:88F68F8755E1F76107D6EE2134ED32BABBC91F0B44C7C0EE3850BBA74B7E59B8;
D:88E68F8755E1F76107D6EE2134ED32C91F0B44C7C0EE3850BBA74B7E59B8;
E:89F68F8755E1F76107D6EE2134ED32BABBC91F0B44C7C0EE3850BBA74B7E59
61.在Alice的USB内, ZIP文件的最后修改时是?
A:2020/09/29 18:46;
B:2020/09/27 18:46;
C:2020/09/28 18:46;
D:2020/09/24 18:47;
E:2020/09/28 16:48