Scoreboard : DFIR CTF Challenge - Ransomware ate my homework

#	Team	Points
1	GabberBro	3,050
2	elsa__	3,050
3	kuko__	3,050
4	imnotarobot	2,650
5	+q (Forgot Password)	2,500
6	Secun	2,425
7	SierraX	2,400
8	FerrisRS	2,100
9	Toni	2,025
10	carlos	1,900
11	Hattori Hanzo	1,900
12	Chicharo95	1,900
13	Fran C	1,825
14	c0qu1n4$$	1,725
15	Redes LAN	1,725
16	lauper	1,700
17	Scrach	1,700
18	Andres Y	1,675
19	Jonos	1,475
20	JavierAlbiac	1,425
21	Gonzalo	1,300
22	wh1tedrvg0n	1,150
23	Tania	1,050
24	Murugan	975
25	S2 Grupo - II Forensication	950
26	Brian	175
27	+q	0
28	MySOChasHoles	0
29	WmanuW	0
30	mariotol	0
31	AlvaroOrtiz	0
32	BlueOscuro	0
33	Raf	0
34	hugo sanz	0
35	S2 Grupo - II Forensicaton	0
36	carpese	0
37	Elena_Moreno	0
38	DG	0
39	NoNamedX	0
40	fbarrachina	0
41	jmartinez	0
42	ces23	0
43	S2-AGS	0
44	Gorane	0
45	mario.munoz	0
46	W4nn4Die	0
47	manolorastaman	0
48	forense	0

#	Team	Points
1	DFIR Oscense	2,625
2	Lucky	2,550
3	Gwynble1dd	2,525
4	Alde	2,425
5	nes_us	2,250
6	NutcrackerOwO	2,100
7	Bridge 4	2,075
8	unizar2023	950
9	RotoGG	550
10	alone	500
11	freelen	275
12	miqnavcho	100
13	Miquel Navarro	0
14	cewibe7983@mcuma.com	0
15	miquel	0
16	Testing	0
17	Exemplo1	0
18	héctor	0

#	Team	Points
1	PhineasFisher	3,050
2	RootedCon24	2,450
3	mer	2,450
4	Ellendar	2,450
5	JonDoe	2,025
6	Ps	1,775
7	Xeyuin	1,700
8	aillusion	1,525
9	yosek26480	1,425
10	Rivery	1,275
11	Defender	1,000
12	hecutresc	750
13	Exemplo0	350
14	franlx_14_	0
15	catarata	0

#	Team	Points
1	Luisalb	650
2	ocaroline	650
3	crisix	550
4	atila	550
5	joseluis	550
6	mary4	550
7	JuanXXIII	550
8	bikthor	525
9	cpou	525
10	JXXIII	500
11	rosams	350
12	fgf	325
13	yyyttt+++	325
14	jluis	0
15	Garbanzos Torraos	0
16	BXVI	0
17	martafg	0

#	Team	Points
1	Alvaro :P	3,050
2	Salmón Segura	3,050
3	Termindiego25	3,050
4	Clau	2,850
5	Jabato Dongo	2,750
6	Perro Daniel	2,750
7	Celia Rosell	2,750
8	BUENASSSSS	2,650
9	EchoPing	2,575
10	Elba	2,175
11	Alberto	1,975
12	Huguillo	1,975
13	Enigmático	1,900
14	brTT	1,225
15	HugoGB	0
16	PingKing	0

Level 1: Domain controller	Points	Solved by	First solvers
01- What is the name of the first anomalous GPO?	75	79%	Secun GabberBro imnotarobot
02. At which time can the second malicious GPO be considered as loaded and ready to be applied?	100	86%	adriandlhc LosChunguitos Ximo
03. At what time can you see a logon type 10 user login on the domain controller?	50	91%	adriandlhc bob Asere Jévere
04. A foul-mouthed named script was executed a little after this user login. What is its name?	50	88%	adriandlhc LosChunguitos Ximo
04_Extra: How this file arrived to the domain controller?	100	30%	adriandlhc LosChunguitos Ximo
05. The antivirus detected a malicious file around this time. Which name does it have?	50	90%	adriandlhc Asere Jévere LosChunguitos
06. Which specific threat is launched by the AV detection?	75	65%	Gonzalo GabberBro Toni
07. Which ransomware family are the attackers planning to deploy?	50	79%	adriandlhc LosChunguitos Ximo
08. The GPO establish a fixed time for ransomware execution. Which time are the scheduled tasks of doom timed to start?	75	77%	LosChunguitos Ximo adriandlhc
08_Extra: There is a GPO in the disk that sets a value for the Group Policy Refresh. What is the time between cheks?	100	47%	adriandlhc LosChunguitos Ximo
09. What is the IP used by the attackers to connect to the domain controller ?	25	81%	adriandlhc LosChunguitos Ximo
09_Extra. Which kind of authentication used the attacker to log into the system?	100	55%	adriandlhc Ximo LosChunguitos

Level 2: W10-PC3	Points	Solved by	First solvers
01. Which execution pinpoints the first lateral movement on this machine?	50	62%	Asere Jévere LosChunguitos adriandlhc
02. This malicious execution is used to launch another known threat. At what UTC time?	75	56%	LosChunguitos Asere Jévere adriandlhc
03. What is the external IP used by the attackers?	50	66%	adriandlhc Ximo LosChunguitos
04. This machine is listening in a really odd port for an endpoint. Which one?	50	66%	adriandlhc Ximo LosChunguitos
05. The attackers are quite sassy ... but sloppy too. Can you locate the password for one of this accounts?	100	61%	adriandlhc LosChunguitos Asere Jévere
06. Which privileged account has been used by the attackers ?	50	56%	Secun GabberBro imnotarobot
06_extra. How many times did the attackers login on the DC from a user of this computer ?	125	26%	Asere Jévere adriandlhc Fran C
07. How many different users did login on this computer on November 9 ?	75	59%	Asere Jévere adriandlhc Deckcard23
08. What EXACT authentication data from dom.adm account has been compromised ?	200	36%	Asere Jévere adriandlhc GabberBro
08_extra. The attackers surely have left some persistence on this computer. Find it and give us the name/key/filename/whatever used.	200	16%	Asere Jévere adriandlhc Cyberscope
09. The first question refers to a malicious code execution. What IP addresses did this attack likely came from?	75	47%	Asere Jévere adriandlhc Deckcard23

Level 3: W10-PC5	Points	Solved by	First solvers
01. What "disguise" has used the executable used to run code on W10-PC3?	50	51%	adriandlhc Deckcard23 teamrocket
02. Which script/command/thingy is used by the attackers to disable the antivirus?	100	49%	adriandlhc Deckcard23 Cyberscope
03. There are two different C2 used by the attackers. What are their IP?	75	47%	Asere Jévere adriandlhc Cyberscope
04. Attackers have used two Active Directory recon tools. When was the latest one first launched ?	75	40%	adriandlhc Cyberscope teamrocket
05. Which file has an exploit used by the attackers to elevate privileges?	100	39%	imnotarobot Secun kuko__
05_extra. What CVE have exploited the attackers to gain elevated privileges on the system?	200	36%	adriandlhc Deckcard23 Cyberscope
06. There is more than one malicious payloads running wild on this machine. When did the second one was deployed?	75	32%	adriandlhc Asere Jévere Deckcard23
07. What is the first recon command made by the attackers ?	75	41%	adriandlhc Asere Jévere Deckcard23
08. This machine is plagued with evil. Name the file who drops the first malicious payload	75	42%	adriandlhc Asere Jévere Deckcard23
09. Here you have the malicious file from the previous question. What payload drops?	100	26%	GabberBro +q (Forgot Password) SierraX
10. Which REAL domain/filename/underwear was used to spoof MINAF? Use the file attached	75	37%	imnotarobot Toni GabberBro
10_extra. With all the evidence you have collected, and having to make a wild guess (attribution is hard, we know it) ... Which country did the attackers came from?	150	30%	adriandlhc Cyberscope teamrocket

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