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Updated RapperBot malware targets game servers in DDoS attacks

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Reading Time: 3 Minutes The Mirai-based botnet ‘RapperBot’ has re-emerged via a new campaign that infects IoT devices for DDoS (Distributed Denial of Service) attacks against game servers.The malware was discovered by Fortinet researchers last August when it used SSH brute-forcing to spread on Linux servers.

By tracing its activities, the researchers found that RapperBot has been operational since May 2021, but its exact goals were hard to decipher.
https://www.bleepstatic.com/images/news/u/1220909/Diagrams/campaigns.png
Lifting the lid on RapperBotFortinet analysts could sample the new variant using C2 communication artifacts collected in the previous campaigns, indicating that this aspect of the botnet’s operation has not changed.

The analysts noticed the new variant featured several differences, including support for Telnet brute-forcing, using the following commands:

* Register (used by the client)
* Keep-Alive/Do nothing
* Stop all DoS attacks and terminate the client
* Perform a DoS attack
* Stop all DoS attacks
* Restart Telnet brute forcing
* Stop Telnet brute forcing

The malware tries to brute force devices using common weak credentials from a hardcoded list, whereas previously, it fetched a list from the C2.

“To optimize brute forcing efforts, the malware compares the server prompt upon connection to a hardcoded list of strings to identify the possible device and then only tries the known credentials for that device,” explains Fortinet.

“Unlike less sophisticated IoT malware, this allows the malware to avoid trying to test a full list of credentials.”

After successfully finding credentials, it reports it to the C2 via port 5123 and then attempts to fetch and install the correct version of the primary payload binary for the detected device architecture.

Currently supported architectures are ARM, MIPS, PowerPC, SH4, and SPARC.
https://www.bleepstatic.com/images/news/u/1220909/Code%20and%20Details/wget.png
Likely the same operatorsFo[...]

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Black Hat Ethical Hacking

Updated RapperBot malware targets game servers in DDoS attacks | Black Hat Ethical Hacking

The Mirai-based botnet 'RapperBot' has re-emerged via a new campaign that infects IoT devices for DDoS (Distributed Denial of Service) attacks against game servers.

6 viewsedited 09:35

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Black Hat Ethical Hacking Updated RapperBot malware targets game servers in DDoS attacks Updated RapperBot malware targets game servers in DDoS attacksPost Views: 1 Premium Contenthttps://www.blackhatethicalhacking.com/wp-content/uploads/2022/09/Patreon.png…

rtinet believes all detected RapperBot campaigns are orchestrated by the same operators, as newer variants indicate access to the malware’s source code.

Moreover, the C2 communication protocol remains unchanged, the list of credentials used for brute forcing attempts has been the same since August 2021, and there have been no signs of campaign overlaps at this time.

To protect your IoT devices from botnet infections, keep the firmware up to date, change default credentials with a strong and unique password, and place them behind a firewall if possible.
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Pentesting CTFs
https://www.reddit.com/r/Pentesting/comments/yxnr7q/pentesting_ctfs/

All (Jeopardy) CTFs I have participated (Goole, Plaid, etc., etc...) in only had challenges that were based on implementation vulnerabilities. I.e. You get some code (or sometimes not) and you only have to read some flag on the server by exploiting the software without having to nmap etc. the machine and without any priv. escalation. Are there CTFs that provide challenges with all stages of a pentest i.e. Scanning a machine, Finding the vulnerable software and correct operating system, RCE, FIRST FLAG, priv. esc., SECOND FLAG... I failed to find anything but articles that explained the difference between "Real" Pentesting and CTFs... Edit: If possible I would like to avoid Attack-Defense CTFs as they seem really stressful to me. submitted by /u/Hellstorme (https://www.reddit.com/user/Hellstorme)
[link] (https://www.reddit.com/r/Pentesting/comments/yxnr7q/pentesting_ctfs/) [comments] (https://www.reddit.com/r/Pentesting/comments/yxnr7q/pentesting_ctfs/)

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Pentesting CTFs

All (Jeopardy) CTFs I have participated (Goole, Plaid, etc., etc...) in only had challenges that were based on implementation vulnerabilities....

6 viewsedited 11:56

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hacking: security in practice
Where to begin

Hello world, how are well hopefully doing well but I came here today to ask you lovely people on this subreddit where to begin my hacking career, I have a limited experience with Linux and networking and some programming here and there.

submitted by /u/Spread-Particular
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Where to begin

Hello world, how are well hopefully doing well but I came here today to ask you lovely people on this subreddit where to begin my hacking career,...

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Hacking Articles Tips Tricks Videos Tutorials

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Hacking on Medium
How to Get Into Bug Bounties?( Beginner’s guide)

https://cdn-images-1.medium.com/max/1200/1*8qJ8TrZTtaZufZRP-G_cFQ.jpeg
Hello Future Bug Bounty Hunters!

Continue reading on Medium »

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Medium

How to Get Into Bug Bounties?( Beginner’s guide)

Hello Future Bug Bounty Hunters!

6 viewsedited 12:27

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Hacking on Medium
Ingeniería inversa de un “crackme” (parte 3)

https://cdn-images-1.medium.com/max/2600/0*lwzHeDBlrFr6MmfB
Reversing 101. “Hooking is the new Hacking”

Continue reading on Medium »

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Medium

Ingeniería inversa de un “crackme” (parte 3)

Reversing 101. “Hooking is the new Hacking”

5 viewsedited 12:27

Hacking Articles Tips Tricks Videos Tutorials

nuvola - Tool To Dump And Perform Automatic And Manual Security Analysis On Aws Environments Configurations And Services
http://www.kitploit.com/2022/11/nuvola-tool-to-dump-and-perform.html

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KitPloit - PenTest & Hacking Tools

nuvola - Tool To Dump And Perform Automatic And Manual Security Analysis On Aws Environments Configurations And Services

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