TMCTF Writeup
開催当日も仕事だったのでがっつり出来ませんでしたが、今まで参加したCTFと比べてレベル高くて降参って感じでした。
自力で唯一解けたのがMisc100
ACROSS
3 A technique used for a piece of email to be sent to specific organisations
SPEAR PHISHING
6 An effective measure that protects unpatched vulnerabilities on a system
VIRTUAL PATCHING
8 Indicator of Compromise
9 The year the company hosting TMCTF was founded
EIGHTY EIGHT (1988)
11 Malware or technique used by cybercriminals that were arrested by FBI in 2011. The company hosting TMCTF contributed to this case.
DNS CHANGER
12 Global Technical Support and R&D Center of the company hosting TMCTF
TREND LABS
14 A piece of malware that prevents you from accessing your files and asks for money
RANSOMWARE
15 Something that was compromised in CMS in the following video: https://youtu.be/z5FXxnHiZOQ?list=PL08763C67B0C84AA1
VULNABILITY (2:18)
16 Annoying email or canned food
17 A server used by cybercriminals to communicate with a piece of malware planted in corporate network
COMMAND AND CONTROL
19 Where the main character got infected with malware in the following video: https://youtu.be/ws7Hqb-GPnc?list=PL08763C67B0C84AA1
SxxxExxxTxxxx (DOWN19から)
21 Current CEO of the company hosting TMCTF
EVA CHEN
23 Also known as 'internet'
CLOUD
24 Breach detection solution from the company hosting TMCTF
DEEP DISCOVERY
DOWN
1 Free malware scanning tool from the company hosting TMCTF
HOUSECALL
2 What assumuption does the narrator say is required in the following video: https://youtu.be/0hs8rc2u5ak
BREACH WILL HEPPEN (5:08)
4 A type of malware used for stealing data from corporate network
BACKDOOR
5 Datacenter security platform from the company hosting TMCTF
DEEP SECURITY
7 International law enforcement working with the company hosting TMCTF
10 The company hosting TMCTF
TRENDMICRO
13 Malware that was prevalent in late 90s and now resurging in 2015
MACROVIRUS
18 Cyber attack targeting specific organisation
APT
19 System used for industrial control system
SCADA
20 Where the company hosting TMCTF is headquartered
TOKYO
22 A unique executive position within the the company hosting TMCTF
CCO
先頭の文字を並べるとSVIEDTRVSCSECDHBBDITMASTCになります。
MD5かけたのがflagなので、TMCTF{88f5505a45c9e176e36898095f505187}
あとはチームメイトが解いてくれましたが、200問題以降お手上げ状態。まだまだ実力不足だなーと感じました。
