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	Andres Y	1,675
18	JavierAlbiac	1,425
19	Gonzalo	1,300
20	wh1tedrvg0n	1,150
21	Tania	1,050
22	Murugan	975
23	S2 Grupo - II Forensication	950
24	Brian	175
25	Gorane	0
26	mario.munoz	0
27	W4nn4Die	0
28	manolorastaman	0
29	+q	0
30	MySOChasHoles	0
31	WmanuW	0
32	AlvaroOrtiz	0
33	mariotol	0
34	BlueOscuro	0
35	Raf	0
36	hugo sanz	0
37	S2 Grupo - II Forensicaton	0
38	carpese	0
39	Elena_Moreno	0
40	DG	0
41	NoNamedX	0
42	jmartinez	0
43	fbarrachina	0
44	ces23	0
45	S2-AGS	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	Testing	0
12	cewibe7983@mcuma.com	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

Level 1: Domain controller	Points	Solved by	First solvers
01- What is the name of the first anomalous GPO?	75	69%	Secun GabberBro imnotarobot
02. At which time can the second malicious GPO be considered as loaded and ready to be applied?	100	81%	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	87%	adriandlhc LosChunguitos Ximo
04_Extra: How this file arrived to the domain controller?	100	33%	adriandlhc LosChunguitos Ximo
05. The antivirus detected a malicious file around this time. Which name does it have?	50	91%	adriandlhc Asere Jévere LosChunguitos
06. Which specific threat is launched by the AV detection?	75	55%	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	75%	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	54%	adriandlhc LosChunguitos Ximo
09. What is the IP used by the attackers to connect to the domain controller ?	25	82%	adriandlhc LosChunguitos Ximo
09_Extra. Which kind of authentication used the attacker to log into the system?	100	63%	adriandlhc Ximo LosChunguitos

Level 2: W10-PC3	Points	Solved by	First solvers
01. Which execution pinpoints the first lateral movement on this machine?	50	69%	Asere Jévere LosChunguitos adriandlhc
02. This malicious execution is used to launch another known threat. At what UTC time?	75	61%	LosChunguitos Asere Jévere adriandlhc
03. What is the external IP used by the attackers?	50	75%	adriandlhc Ximo LosChunguitos
04. This machine is listening in a really odd port for an endpoint. Which one?	50	76%	adriandlhc Ximo LosChunguitos
05. The attackers are quite sassy ... but sloppy too. Can you locate the password for one of this accounts?	100	67%	adriandlhc LosChunguitos Asere Jévere
06. Which privileged account has been used by the attackers ?	50	60%	Secun GabberBro imnotarobot
06_extra. How many times did the attackers login on the DC from a user of this computer ?	125	24%	Asere Jévere adriandlhc Fran C
07. How many different users did login on this computer on November 9 ?	75	67%	Asere Jévere adriandlhc Deckcard23
08. What EXACT authentication data from dom.adm account has been compromised ?	200	37%	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	21%	Asere Jévere adriandlhc Cyberscope
09. The first question refers to a malicious code execution. What IP addresses did this attack likely came from?	75	48%	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	54%	adriandlhc Deckcard23 teamrocket
02. Which script/command/thingy is used by the attackers to disable the antivirus?	100	51%	adriandlhc Deckcard23 Cyberscope
03. There are two different C2 used by the attackers. What are their IP?	75	48%	Asere Jévere adriandlhc Cyberscope
04. Attackers have used two Active Directory recon tools. When was the latest one first launched ?	75	39%	adriandlhc Cyberscope teamrocket
05. Which file has an exploit used by the attackers to elevate privileges?	100	40%	imnotarobot Secun kuko__
05_extra. What CVE have exploited the attackers to gain elevated privileges on the system?	200	42%	adriandlhc Deckcard23 Cyberscope
06. There is more than one malicious payloads running wild on this machine. When did the second one was deployed?	75	33%	adriandlhc Asere Jévere Deckcard23
07. What is the first recon command made by the attackers ?	75	45%	adriandlhc Asere Jévere Deckcard23
08. This machine is plagued with evil. Name the file who drops the first malicious payload	75	46%	adriandlhc Asere Jévere Deckcard23
09. Here you have the malicious file from the previous question. What payload drops?	100	34%	GabberBro +q (Forgot Password) SierraX
10. Which REAL domain/filename/underwear was used to spoof MINAF? Use the file attached	75	39%	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	34%	adriandlhc Cyberscope teamrocket

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