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Germán Fernández Profile picture
@1ZRR4H
Sep 20, 2022 • 6 tweets • 4 min read • Read on X
19/SEPT: El grupo hacktivista #Guacamaya filtró 366 GB de correos internos del Estado Mayor Conjunto de las Fuerza Armadas de Chile (EMCO) 🇨🇱

La operación #FuerzasRepresivas corresponde a una serie de ataques a fuerzas policiales y militares en LATAM.

1/ ImageImageImage
El grupo estuvo explotando la vulnerabilidad #ProxyShell para acceder a los servidores Microsoft Exchange de las organizaciones.

Algunas IPs en las imágenes corresponden a servidores vulnerables alertados desde al menos el 09/Agosto/2021. REF: cronup.com/proxyshell-el-…

2/
Próximas filtraciónes según #Guacamaya:

- SEDENA México (6 TB)
- Policía Nacional Civil de El Salvador (4 TB)
- Comando General de las Fuerzas Militares de Colombia (275 GB)
- Fuerza Armada de El Salvador (50 GB)
- CCFFAA del Perú (35 GB)
- Ejercito del Perú (70 GB)

3/ Image
Más de este grupo en esta entrevista que dieron a Forbidden Stories: “The struggle of one territory must be the struggle of all”

forbiddenstories.org/the-struggle-o…

4/
Más noticias relacionadas a este Ciberataque: meganoticias.cl/temas/hackeo-c… #EMCO

5/ ImageImage
Según Shodan, uno de los servidores vulnerables de EMCO estuvo expuesto a Internet hasta al menos el pasado 11/Sept/2022.

El parche para CVE-2021-31206 (Microsoft Exchange RCE, complemento de #ProxyShell) estuvo disponible desde Julio 2021 en la actualización KB5004780.

6/ Image

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More from @1ZRR4H

Germán Fernández Profile picture
May 25, 2023
🚨 1/ Ongoing campaign primarily targeting security researchers here on Twitter.

Possibly they are trying to exploit some vulnerability in Internet Explorer and database tools like Navicat. I haven't been able to get the malicious payload yet, but something fishy is going on 🤔 ImageImageImageImage
2/ Tweets mention things like #0day, #databreach, #Kimsuky, #Lazarus and point to a file download on pan[.]baidu[.]com, just now removed.

There is also a repo on Github with connection data and credentials to supposed DBs and Web Apps that ask to use IE 🤭 ImageImageImageImage
3/ I tried 211.143.190.233:2222, at first glance harmless, but in the code we see that it points to a rather suspicious .JS.

When we deofuscate and clean, a hidden URL appears that could load the next stage, however I could not get it (maybe geofenced or some other trick). ImageImageImageImage
Read 7 tweets
Germán Fernández Profile picture
May 14, 2023
Some recently registered .ZIP domains 🤭 Image
I liked this one too:
/keygen.zip Image
Okeyyyyyyyyy! 😏
/microsoft-office.zip Image
Read 7 tweets
Germán Fernández Profile picture
Mar 20, 2023
1/ Part of the script used by #TA569 (Initial Access Broker) to inject the Keitaro TDS code into compromised sites 🚩

In this variant, if the IP is correct and the red_ok cookie is not declared, the injection is shown and the infection flow continues until #SocGholish or others. ImageImageImage
2/ Two #KeitaroTDS domains in use by #TA569:
- jqueryns[.]com
- jqscr[.]com "new"

In the IP of the latter there is also the domain jqueryj[.]com with a panel that at first sight I cannot recognize 🧐 but is some kind of bot/stealer/clipper, very likely related. / @ViriBack ImageImageImageImage
3/ To get an idea of the scope, if we search on publicwww for the domain "jqueryns[.]com" we get 2196 infected sites, for the domain "jqscr[.]com" we get another 196 compromised sites so far.

- publicwww.com/websites/%22jq…
- publicwww.com/websites/%22jq…

More results in Google too 🤦‍♂️ ImageImageImageImage
Read 5 tweets
Germán Fernández Profile picture
Feb 27, 2023
1/ Entonces, "kung_liao" un nuevo actor de amenazas logró acceso y expuso información privada de varias empresas Chilenas 🇨🇱

1) DIGITALPROSERVER.COM | 21/01/23
2) TESORERIA.CL | 03/02/23
3) CMFCHILE.CL | 12/02/23
4) ARKAVIA.COM | 15/02/23
2/ Para DIGITALPROSERVER.COM, el atacante indica que vende acceso a más de 500 DBs y sitios que incluyen importantes medios digitales, noticieros, radios, etc.

Como muestra, el atacante publicó credenciales y una de las Webshell que tenía instalada en El Mostrador (reportado)
3/ Para TESORERIA.CL, el atacante al parecer explotó una vulnerabilidad de Inyección SQL y además obtuvo acceso a la Intranet a través de la VPN.

Una de las evidencias muestra al atacante modificando información personal de una persona de apellido "Piñera Echenique".
Read 6 tweets
Germán Fernández Profile picture
Jan 21, 2023
1/ DEV-0569, current distribution via #GoogleAds.

1.- #Gozi aka #Ursnif (bot) ↓
2.- #RedLine (stealer) ↓
And if the conditions are right, possibly:
3.- #CobaltStrike (C2) ↓
4.- #Royal Ransomware 💥

(No more BatLoader in the infection chain)
2/ For deployment, they use Add-MpPreference to configure exclusions in Windows Defender (extensions, paths and processes), #NSudo to launch binaries with full privileges and #GnuPG to encrypt the payloads.

Initial MSI file has 0 hits in VT.
3/ All payloads are hosted on @Bitbucket, in a repository that was created in August 2022.

In just 3 days, #Gozi and #RedLine have been downloaded 2477 and 2503 times respectively.

ZLocal.gpg has been downloaded more than 48193 times since December 24, 2022 (potential victims).
Read 10 tweets
Germán Fernández Profile picture
Sep 29, 2022
1/ So, site impersonating @Fortinet downloads signed MSI that uses Powershell to run #BatLoader, if the user is connected to a domain (corporate network) it deploys:

1) #Ursnif (Bot)
2) #Vidar (Stealer)
3) #Syncro RMM (C2)
4) #CobaltStrike
And possibly
5) #Ransomware 💥 ImageImageImageImage
2/ For initial deployment they use NirCmd, NSudo and GnuPG (to encrypt payloads) among other utilities.

* Remove-Item -Path "HKLM:\SOFTWARE\Microsoft\AMSI\Providers\{2781761E-28E0-4109-99FE-B9D127C57AFE}" -Recurse
* Remove-Encryption -FolderPath $env:APPDATA -Password '105b' ImageImageImageImage
3/ The websites are boosted through SEO poisoning and impersonate brands such as @Zoom, @TeamViewer, @anydesk, @LogMeIn, @CCleaner, #FileZilla and #Winrar among others.

/teamviewclouds.com
/zoomcloudcomputing.tech
/logmein-cloud.com
/teamcloudcomputing.com
/anydeskos.com ImageImageImageImage
Read 10 tweets

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