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# New Attacks Linked to C0d0so0 Group

![Clock Icon](https://unit42.paloaltonetworks.com/wp-content/themes/unit42-v6/dist/images/icons/icon-clock.svg) 9 min read  
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* ![Profile Icon](https://unit42.paloaltonetworks.com/wp-content/themes/unit42-v6/dist/images/icons/icon-profile-grey.svg)  
  By:
  
  * [Bryan Lee](https://unit42.paloaltonetworks.com/author/bryanlee/)

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  Published:January 22, 2016

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  * [Malware](https://unit42.paloaltonetworks.com/category/malware/)
  * [Threat Research](https://unit42.paloaltonetworks.com/category/threat-research/)

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  Tags:
  
  * [Adobe Flash](https://unit42.paloaltonetworks.com/tag/adobe-flash/)
  * [C0d0so0](https://unit42.paloaltonetworks.com/tag/c0d0so0/)
  * [Codoso](https://unit42.paloaltonetworks.com/tag/codoso/)
  * [IDAPython](https://unit42.paloaltonetworks.com/tag/idapython/)

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  While recently researching unknown malware and attack campaigns using the AutoFocus threat intelligence platform, Unit 42 discovered new activity that appears related to an adversary group previously called "C0d0so0" or "Codoso". This group is well known for a widely publicized attack involving the compromise of Forbes.com, in which the site was used to compromise selected targets via a watering hole to a zero-day Adobe Flash exploit. Compared to other adversary groups, C0d0so0 has shown the use of more sophisticated tactics and tools and has been linked to leveraging zero-day exploits on numerous occasions in combination with watering hole and spear phishing attacks.

In the newly discovered attack campaign, Unit 42 identified attacks targeting organizations within the telecommunications, high tech, education, manufacturing, and legal services industries. The attacks likely were initially delivered via spear-phishing e-mails, or as demonstrated by C0d0so0 in the past, legitimate websites that had been previously compromised then used as watering holes for the selected victims.

In such situations, the victims would then be redirected to another set of compromised websites. These websites hosted malware that would be [side-loaded](https://attack.mitre.org/wiki/DLL_side-loading) with a legitimate signed executable. These tactics are becoming increasingly common by malware authors in order to evade security products and controls. Two variants of the malware employed by C0d0so0 were discovered---one that used HTTP for command and control (C2) communications, and one that used a custom network protocol over port 22.

In these newly discovered C0d0so0 attacks, several of the targeted hosts were identified as server systems, instead of user endpoints, suggesting the possibility that these specific targets will be used in future attacks as additional watering holes. Both of the malware variants encoded and compressed the underlying network traffic to bypass any network-based security controls that were implemented.

The malware variants in question do not appear to belong to any known malware family, although the structure of the network communication does bear a resemblance to the Derusbi malware family, which has shown to be unique to Chinese cyber espionage operators. Past observations of Derusbi in various attack campaigns indicate the version used was compiled specifically for that campaign. Derusbi has had both the client and server variants deployed, using different combinations of configurations and modules. The newly discovered activity is consistent with this procedure, with compile times only a few days prior to the observed attacks.

## Infrastructure

[![codoso](http://blog.paloaltonetworks.com/wp-content/uploads/2016/01/codoso1-500x432.jpg)](https://unit42.paloaltonetworks.com/wp-content/uploads/2016/01/codoso1.jpg)

Figure 1: Attacker infrastructure  
(Click to view full size.)

The following primary C2 servers for the malware variants were identified:

* jbossas\[.\]org
* supermanbox\[.\]org
* microsoft-cache\[.\]com

The 'jbossas' and 'supermanbox' domains were found to resolve to the same Hong Kong based IP address, 121.54.168.230. A total of three unique samples were identified communicating with these two domains using the raw network protocol communicating over port 22. They used what appeared to be three separate legitimate websites that looked to be compromised for malware distribution.

The 'microsoft-cache' domain was used by the malware variant that communicated over HTTP. We found four unique samples communicating with this domain, which resolved to the same Hong Kong-based IP address used by the first two domains.

## Malware Analysis -- HTTP Variant

This variant was disguised as a serial number generator for the popular AVG anti-virus product. When executed, the binary will drop and run the serial generator for AVG.

[![Codoso2](http://blog.paloaltonetworks.com/wp-content/uploads/2016/01/Codoso2-500x389.png)](https://unit42.paloaltonetworks.com/wp-content/uploads/2016/01/Codoso2.png)

Figure 2: AVG serial generator

It will also drop the following two files:

% LOCALAPPDATA %\\dbgeng.dll  
% LOCALAPPDATA %\\fakerx86.exe

The dropped DLL in question is sideloaded with the legitimate fakerx86.exe executable, which is the symbolic debugger for Microsoft Windows.

Upon loading the malicious DLL, a number of encrypted blobs are decrypted using single-byte XOR keys. Strings are separated by five bytes of junk data, which is consistent across all samples witnessed.

[![Codoso3](http://blog.paloaltonetworks.com/wp-content/uploads/2016/01/Codoso3-500x189.png)](https://unit42.paloaltonetworks.com/wp-content/uploads/2016/01/Codoso3.png)

Figure 3: Decrypted strings

The following IDAPython script can be used to both decrypt and parse these encrypted blobs:  
def xor(size, key, buff): for index in range(0,size): cur\_addr = buff + index temp = idc.Byte(cur\_addr) ^ key idc.PatchByte(cur\_addr, temp) def parse\_config(size, buff): last\_string = buff while last\_string \< buff+size: next\_string = last\_string+5 idaapi.make\_ascii\_string(next\_string, 0, ASCSTR\_C) string = GetString(next\_string, -1, ASCSTR\_C) print "Found string:", string last\_string = next\_string+len(string)+1 def decrypt\_and\_parse(size, key, buff): xor(size, key, buff) parse\_config(size, buff)

|----------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 | def xor(size, key, buff): for index in range(0,size): cur\_addr = buff + index temp = idc.Byte(cur\_addr) ^ key idc.PatchByte(cur\_addr, temp) def parse\_config(size, buff): last\_string = buff while last\_string \< buff+size: next\_string = last\_string+5 idaapi.make\_ascii\_string(next\_string, 0, ASCSTR\_C) string = GetString(next\_string, -1, ASCSTR\_C) print "Found string:", string last\_string = next\_string+len(string)+1 def decrypt\_and\_parse(size, key, buff): xor(size, key, buff) parse\_config(size, buff) |

After various data is decrypted, the malware will ensure that it is not running within the context of the rundll32.exe executable. This simple check acts as a simple anti-reversing mechanism, and ensures it is not running in either an analyst environment or a sandbox.

It continues to ensure persistent execution by setting the following registry key:

*HKCU\\Software\\Microsoft\\Windows\\CurrentVersion\\Run\\Windows Debug Tools -- %LOCALAPPDATA%\\fakerx86.exe*

The malware variant continues to spawn new threads that are responsible for network communication and other malicious activities. It then gathers information about the victim machine, including the following:

* MAC Address
* IP Address
* Username
* Hostname
* CPU Information

This information will eventually be exfiltrated via a HTTP POST request, as seen below. The data sent is base64-encoded.

[![Codoso4](http://blog.paloaltonetworks.com/wp-content/uploads/2016/01/Codoso4-500x314.png)](https://unit42.paloaltonetworks.com/wp-content/uploads/2016/01/Codoso4.png)

Figure 4: Malware exfiltrating victim information

All network communication for this malware variant takes places over HTTP. The server will respond with data similar to the following:

[![Codoso5](http://blog.paloaltonetworks.com/wp-content/uploads/2016/01/Codoso5-500x340.png)](https://unit42.paloaltonetworks.com/wp-content/uploads/2016/01/Codoso5.png)

Figure 5: C2 server response

The malware will parse the 'background-color' parameter in the C2 response to determine what offset it will read. In the above example, the '028300' is converted to an integer and divided by 100 to produce a result of 283. The malware proceeds to read in data at offset 283. The first four bytes of this data represent the total length. The remaining data is base64-decoded and parsed. This base64-decoded data has the following data structure:

[![Codoso6](http://blog.paloaltonetworks.com/wp-content/uploads/2016/01/Codoso6-500x120.png)](https://unit42.paloaltonetworks.com/wp-content/uploads/2016/01/Codoso6.png)

Figure 6: Network data structure

The server will respond with a DLL file that has the following exports:

* StartWorker
* StopWorker
* WorkerRun
* DllEntryPoint

When loaded, this DLL attempts to download further plugins from the remote server. At the time of analysis, no plugins were available as the command and control server was no longer active.

## Malware Analysis -- Port 22 Variant

This variant, which appears to be more recent than the HTTP variant, is delivered via the filename of 'McAltLib.dll' and is configured to be side-loaded with the legitimate McAfee mcs.exe executable.

[![Codoso7](https://unit42.paloaltonetworks.com/wp-content/uploads/2016/01/Codoso7.png)](https://unit42.paloaltonetworks.com/wp-content/uploads/2016/01/Codoso7.png)

Figure 7: Malware side-loaded with mcs.exe executable

When initially loaded, the malware will register itself as a service with the following parameters:

*Service Name: Dncp*  
*Display Name: Dncp Client*  
*Binary Path: %SystemRoot%\\System32\\svchost.exe -k netsvcs*  
*Startup Type: SERVICE\_AUTO\_START*  
*Account: LocalSystem*

Additionally, the following registry keys are set or modified:

*HKLM\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\SvcHost\\netsvcs : Appends 'Dncp'*

*HKLM\\SYSTEM\\CurrentControlSet\\Services\\Dncp\\Description: "Registers and updates IP addresses and DNS records for this computer.If this service is stopped, this computer will not receive dynamic IP addresses and DNS updates.If this service is disabled, any services that explicitly depend on it will fail to start"*

*HKLM\\SYSTEM\\CurrentControlSet\\Services\\Dncp\\Parameters\\ServiceDll : Path to McAltLib.dll*

These modifications configure the McAltLib.dll to execute in the context of a service and to be run automatically when the machine is rebooted. When the malware is initially executed, it will open and start the 'Dncp' service after the service is created. When run in the context of a service, the malware will spawn two threads.

Throughout execution of this variant, it will call a function responsible for decrypting subsequent instructions. After the instructions have completed executing, another function is called that will re-obfuscate the previously executed instructions. This acts as an anti-reversing technique by the author.

[![Codoso8](http://blog.paloaltonetworks.com/wp-content/uploads/2016/01/Codoso8-500x298.png)](https://unit42.paloaltonetworks.com/wp-content/uploads/2016/01/Codoso8.png)

Figure 8: Anti-reversing technique used by the malware

One of the threads is responsible for deleting the original McAfee mcs.exe executable. It will enter a loop attempting to delete the mcs.exe executable that is located in the same directory as McAltLib.dll.

The other thread is responsible for collecting victim information, communicating with a remote host, and downloading/loading further malware. It begins by generating and parsing a configuration string. The following configuration string is used in this particular instance of the malware:

*/s www.supermanbox\[.\]org /p 22 /st 60 /rt 60*

In the above example, the first parameter is the remote hostname and the second parameter is the port over which communication occurs. The remaining parameters are most likely used as sleep timers.

It proceeds to collect the following information from the victim:

* MAC Address
* IP Address
* Username
* Hostname
* CPU Information
* Default Internet Explorer User-Agent

This information is exfiltrated in a newly spawned thread with a randomly chosen delay timer of 1-3 minutes in between attempts.

The malware then proceeds to send an initial beacon to the hostname/port that is configured within the binary. This data contains victim information that was previously collected and the server responds with an acknowledgement. The malware proceeds to send a packet containing the victims MAC address. These packets have the following structure:

[![Codoso9](http://blog.paloaltonetworks.com/wp-content/uploads/2016/01/Codoso9-500x120.png)](https://unit42.paloaltonetworks.com/wp-content/uploads/2016/01/Codoso9.png)

In the above example, only the first byte of the XOR key (0x84) is used for decryption. After the data is decrypted using this single-byte XOR key, it will then be decompressed using the LZO algorithm. The data represented above becomes the following after decryption and decompression takes place:

*00000000: 2D 30 30 30 30 30 31 39 32 36 36 38 39 37 39 32 -000001926689792*

*00000010: 36 00 00 6..*

This string is generated via the MAC address of the victim machine. The MAC address is converted from its original hexadecimal representation to an integer and formatted via a call to printf. It is most likely used as a unique identifier for the victim. Finally, the malware sends a similar request, only with a packet type of '00 07 02 00'. The server responds with a DLL file that has the following exports:

* StartWorker
* StopWorker
* WorkerRun
* DllEntryPoint

When loaded, this DLL attempts to download further plugins from the remote server. At the time of analysis, no plugins were available as the command and control server was no longer active.

## Similarities with Forbes.com Breach

When Forbes.com was compromised in November 2014, victims were infected with malware that loaded a file named [wuservice.dll](https://www.virustotal.com/en/file/6f14491b81a7e49b84c625ee212f8f15008a12ab4352dcb1a8afeced149a5e4b/analysis/). Reverse-engineering this file indicates that the McAltLib.dll file identified in this attack is most likely a newer variant of the malware found in the forbes.com attack.

Of particular note, both samples use a single-byte XOR obfuscation routine where a large buffer is decrypted. Strings are separated by five bytes of garbage, as seen below.

[![Codoso91](http://blog.paloaltonetworks.com/wp-content/uploads/2016/01/Codoso91-500x249.png)](https://unit42.paloaltonetworks.com/wp-content/uploads/2016/01/Codoso91.png)

Figure 9: Comparison of string encryption between samples

As seen in the above screenshot, there is a large overlap in unique strings in both samples. The original sample involved in the forbes.com breach used HTTP, which is consistent with the original variant discussed in this blog post. It should be noted that while the newest variant that uses direct network communication over port 22 no longer uses HTTP, references to the HTTP strings are still found within the sample itself. This is most likely due to code re-used by the attackers.

Overall capabilities between the forbes.com sample and the newest variants discussed are consistent. All samples execute the same overall capabilities, gathering and uploading victim information and attempting to download a secondary DLL then calling that DLL's 'StartWorker' exported function.

## Conclusion

The tactics, techniques, and procedures (TTPs) used by C0d0so0 appear to be more sophisticated than many other adversary groups with multiple layers of obfuscation in use, as well as specific victim targeting in what appears to be an attempt at creating a staging area for additional attack.

Unit 42 will continue observation and research on this group's activity, as it appears this may be the beginning of the campaign. At this time, the following protections are in place for Palo Alto Networks customers:

* WildFire properly identifies samples as malicious
* [AutoFocus tag](https://autofocus.paloaltonetworks.com/#/tag/Unit42.C0d0so0) created
* Domains flagged as malicious

## Appendix

MD5: CD8C2BB644496D46BF1E91AD8A8F882B  
SHA1: CC6EBEEA48A12B396C5FA797E595A0C3B96942DE  
SHA256: 3EA6B2B51050FE7C07E2CF9FA232DE6A602AA5EFF66A2E997B25785F7CF50DAA  
Size: 137728 Bytes  
File Type: PE32 executable (DLL) (GUI) Intel 80386, for MS Windows  
Compile Time: 2015-11-18 15:03:50  
C2: www.supermanbox\[.\]org:22

MD5: 26E863F917DA0B3F7A48304EB6D1B1D3  
SHA1: F7984427093BA1FC08412F8594944CEFE2D86CBF  
SHA256: 3577845D71AE995762D4A8F43B21ADA49D809F95C127B770AFF00AE0B64264A3  
Size: 138752 Bytes  
File Type: PE32 executable (DLL) (GUI) Intel 80386, for MS Windows  
Compile Time: 2015-11-19 16:57:29  
C2: www.jbossas\[.\]org:22

MD5: B06A3A9744E9D4C059422E7AD729EF90  
SHA1: 9BA2249F0A8108503820E2D9C8CBFF941089CB2D  
SHA256: EA67D76E9D2E9CE3A8E5F80FF9BE8F17B2CD5B1212153FDF36833497D9C060C0  
Size: 136704 Bytes  
File Type: PE32 executable (DLL) (GUI) Intel 80386, for MS Windows  
Compile Time: 2015-11-16 16:21:22  
C2: supermanbox\[.\]org:22

MD5: 1CB673679F37B6A3F482BB59B52423AB  
SHA1: B630B7A8FE065E1A6F51EE74869B3938DC411126  
SHA256: B690394540CAB9B7F8CC6C98FD95B4522B84D1A5203B19C4974B58829889DA4C  
Size: 126976 Bytes  
File Type: PE32 executable (DLL) (GUI) Intel 80386, for MS Windows  
Compile Time: 2015-07-15 09:38:15  
C2: www.microsoft-cache\[.\]com

MD5: 39A95C4CBF28EAA534C8F4FC311FE558  
SHA1: F6AEE373F2517F2FB686284C27A84A20999A15A5  
SHA256: CCF87057A4AB02E53BFF5828D779A6E704B040AEF863F66E8F571638D7D50CD2  
Size: 1973747 Bytes  
File Type: PE32 executable (GUI) Intel 80386, for MS Windows  
Compile Time: 2013-06-21 06:26:37  
C2: www.microsoft-cache\[.\]com

MD5: 8AFECC8E61FE3805FDD41D4591710976  
SHA1: 615B022A56E2473B92C22EFA9198A2210F21BDC3  
SHA256: DE33DFCE8143F9F929ABDA910632F7536FFA809603EC027A4193D5E57880B292  
Size: 126980 Bytes  
File Type: PE32 executable (DLL) (GUI) Intel 80386, for MS Windows  
Compile Time: 2015-07-15 09:38:15  
C2: www.microsoft-cache\[.\]com

MD5: 2161C859B21C1B4B430774DF0837DA9D  
SHA1: 380FB5278907FAF3FCA61910F7ED9394B2337EDA  
SHA256: DE984EDA2DC962FDE75093D876EC3FE525119DE841A96D90DC032BFB993DBDAC  
Size: 117248 Bytes  
File Type: PE32 executable (DLL) (GUI) Intel 80386, for MS Windows  
Compile Time: 2015-07-08 13:18:55  
C2: www.microsoft-cache\[.\]com

## IOCs

### Hashes

3ea6b2b51050fe7c07e2cf9fa232de6a602aa5eff66a2e997b25785f7cf50daa  
3577845d71ae995762d4a8f43b21ada49d809f95c127b770aff00ae0b64264a3  
ea67d76e9d2e9ce3a8e5f80ff9be8f17b2cd5b1212153fdf36833497d9c060c0  
de33dfce8143f9f929abda910632f7536ffa809603ec027a4193d5e57880b292  
b690394540cab9b7f8cc6c98fd95b4522b84d1a5203b19c4974b58829889da4c  
de984eda2dc962fde75093d876ec3fe525119de841a96d90dc032bfb993dbdac  
ccf87057a4ab02e53bff5828d779a6e704b040aef863f66e8f571638d7d50cd2

### Domains

www.jbossas\[.\]org  
supermanbox\[.\]org  
www.supermanbox\[.\]org  
www.microsoft-cache\[.\]com

### IPs

121\.54.168.230  
218\.54.139.20  
210\.181.184.64  
42\.200.18.194

### URLs

218\.54.139.20/example/McAltLib.dll  
210\.181.184.64/example/McAltLib.dll  
42\.200.18.194/example/McAltLib.dll

Back to top

### Tags

* [Adobe Flash](https://unit42.paloaltonetworks.com/tag/adobe-flash/ "Adobe Flash")
* [C0d0so0](https://unit42.paloaltonetworks.com/tag/c0d0so0/ "C0d0so0")
* [Codoso](https://unit42.paloaltonetworks.com/tag/codoso/ "Codoso")
* [IDAPython](https://unit42.paloaltonetworks.com/tag/idapython/ "IDAPython")  
  [Threat Research Center](https://unit42.paloaltonetworks.com "Threat Research") [Next: NetTraveler Spear-Phishing Email Targets Diplomat of Uzbekistan](https://unit42.paloaltonetworks.com/nettraveler-spear-phishing-email-targets-diplomat-of-uzbekistan/ "NetTraveler Spear-Phishing Email Targets Diplomat of Uzbekistan")

### Table of Contents

* 

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## Related Malware Resources

![Pictorial representation of a magnifying glass illuminating a glowing orange circular digital circuit interface on a dark, high-tech background.](https://unit42.paloaltonetworks.com/wp-content/uploads/2026/09/04_Myth-Busting_Overview_1920x900-786x368.jpg)  
[![category icon](https://unit42.paloaltonetworks.com/wp-content/uploads/2025/08/Insights-icon-white.svg)Insights](https://unit42.paloaltonetworks.com/category/insights/) September 16, 2026 [#### Atomic macOS (AMOS) Stealer Activity](https://unit42.paloaltonetworks.com/atomic-macos-amos-stealer-activity/)

* [MacOS](https://unit42.paloaltonetworks.com/tag/macos/ "macOS")

* [Threat intelligence](https://unit42.paloaltonetworks.com/tag/threat-intelligence/ "threat intelligence")

* [Unit 42](https://unit42.paloaltonetworks.com/tag/unit-42/ "Unit 42")  
  [Read now ![Right arrow](https://unit42.paloaltonetworks.com/wp-content/themes/unit42-v6/dist/images/icons/icon-right-arrow-withtail.svg)](https://unit42.paloaltonetworks.com/atomic-macos-amos-stealer-activity/ "Atomic macOS (AMOS) Stealer Activity")  
  ![Pictorial representation of post-exploitation identity misuse in SPIFFE/SPIRE. Close-up of a person wearing glasses, with computer code reflected in the lenses.](https://unit42.paloaltonetworks.com/wp-content/uploads/2026/09/12_Security-Technology_Category_1920x900-786x368.jpg)  
  [![category icon](https://unit42.paloaltonetworks.com/wp-content/uploads/2024/06/icon-threat-research.svg)Threat Research](https://unit42.paloaltonetworks.com/category/threat-research/) September 10, 2026 [#### The Machine With Many Faces: Post-Exploitation Identity Misuse in SPIFFE/SPIRE](https://unit42.paloaltonetworks.com/kubernetes-spiffe-spire-identity-spoofing/)

* [API](https://unit42.paloaltonetworks.com/tag/api/ "API")

* [Cryptographic](https://unit42.paloaltonetworks.com/tag/cryptographic/ "cryptographic")

* [JSON](https://unit42.paloaltonetworks.com/tag/json/ "JSON")  
  [Read now ![Right arrow](https://unit42.paloaltonetworks.com/wp-content/themes/unit42-v6/dist/images/icons/icon-right-arrow-withtail.svg)](https://unit42.paloaltonetworks.com/kubernetes-spiffe-spire-identity-spoofing/ "The Machine With Many Faces: Post-Exploitation Identity Misuse in SPIFFE/SPIRE")  
  ![Pictorial representation of a pay-per-install threat group campaign prodiving infection service for spreading malware. A close-up of a computer circuit board with a central microchip is depicted. Red digital data streams in the form of glowing binary numbers and arrows appear to flow in and out of the chip, symbolizing data processing and transfer. The scene is illuminated with a futuristic blue and red glow.](https://unit42.paloaltonetworks.com/wp-content/uploads/2026/09/04_Malware_Category_1920x900-6-786x368.jpg)  
  [![category icon](https://unit42.paloaltonetworks.com/wp-content/uploads/2024/06/icon-threat-research.svg)Threat Research](https://unit42.paloaltonetworks.com/category/threat-research/) September 9, 2026 [#### Untracked Nightmares: The Threats Hiding Behind Commodity Infrastructure](https://unit42.paloaltonetworks.com/ppi-network-malware-campaign-analysis/)

* [ARKTunnel](https://unit42.paloaltonetworks.com/tag/arktunnel/ "ARKTunnel")

* [C2](https://unit42.paloaltonetworks.com/tag/c2/ "C2")

* [CL-CRI-1171](https://unit42.paloaltonetworks.com/tag/cl-cri-1171/ "CL-CRI-1171")  
  [Read now ![Right arrow](https://unit42.paloaltonetworks.com/wp-content/themes/unit42-v6/dist/images/icons/icon-right-arrow-withtail.svg)](https://unit42.paloaltonetworks.com/ppi-network-malware-campaign-analysis/ "Untracked Nightmares: The Threats Hiding Behind Commodity Infrastructure")  
  ![Pictorial representation of attackers using AI tools to target Latin American organizations. A vibrant cityscape with silhouettes of numerous people walking along a bustling street. The scene is illuminated by bright urban lights and digital-like particles, creating a dynamic and futuristic atmosphere.](https://unit42.paloaltonetworks.com/wp-content/uploads/2026/09/AdobeStock_768915868-2-1-786x373.jpg)  
  [![category icon](https://unit42.paloaltonetworks.com/wp-content/uploads/2024/06/icon-threat-research.svg)Threat Research](https://unit42.paloaltonetworks.com/category/threat-research/) September 3, 2026 [#### Attackers Expose Ongoing AI Tool Use Targeting Organizations in Latin America](https://unit42.paloaltonetworks.com/ai-tool-use-targeting-latam-orgs/)

* [Agentic AI](https://unit42.paloaltonetworks.com/tag/agentic-ai/ "Agentic AI")

* [ChatGPT](https://unit42.paloaltonetworks.com/tag/chatgpt/ "ChatGPT")

* [CL-CRI-1131](https://unit42.paloaltonetworks.com/tag/cl-cri-1131/ "CL-CRI-1131")  
  [Read now ![Right arrow](https://unit42.paloaltonetworks.com/wp-content/themes/unit42-v6/dist/images/icons/icon-right-arrow-withtail.svg)](https://unit42.paloaltonetworks.com/ai-tool-use-targeting-latam-orgs/ "Attackers Expose Ongoing AI Tool Use Targeting Organizations in Latin America")  
  ![Pictorial representation of vishing campaigns in Microsoft Teams. A digital image of a skull formed by blue binary code on a black background, with scattered ones and zeros and digital noise, symbolizes how stealthy prompt injection attacks can exploit AI logic to bypass security controls.](https://unit42.paloaltonetworks.com/wp-content/uploads/2026/08/01_Malware_Category_1920x900-5-786x368.jpg)  
  [![category icon](https://unit42.paloaltonetworks.com/wp-content/uploads/2024/06/icon-threat-research.svg)Threat Research](https://unit42.paloaltonetworks.com/category/threat-research/) August 31, 2026 [#### Spring Ring: An Inside Look at Voice Phishing Campaigns in Microsoft Teams](https://unit42.paloaltonetworks.com/spring-ring-voice-phishing-campaigns/)

* [Cloaked Ursa](https://unit42.paloaltonetworks.com/tag/cloaked-ursa/ "Cloaked Ursa")

* [Entra ID](https://unit42.paloaltonetworks.com/tag/entra-id/ "Entra ID")

* [Microsoft Teams](https://unit42.paloaltonetworks.com/tag/microsoft-teams/ "Microsoft Teams")  
  [Read now ![Right arrow](https://unit42.paloaltonetworks.com/wp-content/themes/unit42-v6/dist/images/icons/icon-right-arrow-withtail.svg)](https://unit42.paloaltonetworks.com/spring-ring-voice-phishing-campaigns/ "Spring Ring: An Inside Look at Voice Phishing Campaigns in Microsoft Teams")  
  ![Pictorial representation of AI-enabled malware. A vibrant digital interface displaying various icons and graphs, resembling a futuristic network or data analysis dashboard. The scene is illuminated with glowing lights and patterns.](https://unit42.paloaltonetworks.com/wp-content/uploads/2026/08/AdobeStock_1270203474-2-1-786x368.png)  
  [![category icon](https://unit42.paloaltonetworks.com/wp-content/uploads/2024/06/icon-threat-research.svg)Threat Research](https://unit42.paloaltonetworks.com/category/threat-research/) August 25, 2026 [#### The State of AI-Enabled Malware August 2026: From Brand Abuse to Agentic Execution](https://unit42.paloaltonetworks.com/ai-enabled-malware-analysis/)

* [Backdoor](https://unit42.paloaltonetworks.com/tag/backdoor/ "backdoor")

* [Bitcoin](https://unit42.paloaltonetworks.com/tag/bitcoin/ "Bitcoin")

* [DLL hijacking](https://unit42.paloaltonetworks.com/tag/dll-hijacking/ "DLL hijacking")  
  [Read now ![Right arrow](https://unit42.paloaltonetworks.com/wp-content/themes/unit42-v6/dist/images/icons/icon-right-arrow-withtail.svg)](https://unit42.paloaltonetworks.com/ai-enabled-malware-analysis/ "The State of AI-Enabled Malware August 2026: From Brand Abuse to Agentic Execution")  
  ![Pictorial representation of identity abuse through trusted communication channels. Close-up view of a digital screen displaying a glitched and pixelated image of a skull-like shape.](https://unit42.paloaltonetworks.com/wp-content/uploads/2026/08/02_Malware_Category_1920x900-2-786x368.jpg)  
  [![category icon](https://unit42.paloaltonetworks.com/wp-content/uploads/2024/06/icon-threat-research.svg)Threat Research](https://unit42.paloaltonetworks.com/category/threat-research/) August 20, 2026 [#### Identity Abuse Through Trusted Communication Channels](https://unit42.paloaltonetworks.com/communication-channel-identity-risks/)

* [Authentication](https://unit42.paloaltonetworks.com/tag/authentication/ "authentication")

* [Identity theft](https://unit42.paloaltonetworks.com/tag/identity-theft/ "identity theft")

* [Malware](https://unit42.paloaltonetworks.com/tag/malware/ "malware")  
  [Read now ![Right arrow](https://unit42.paloaltonetworks.com/wp-content/themes/unit42-v6/dist/images/icons/icon-right-arrow-withtail.svg)](https://unit42.paloaltonetworks.com/communication-channel-identity-risks/ "Identity Abuse Through Trusted Communication Channels")  
  ![Pictorial representation of Kimwolf botnet malware family. Digital screen with a warning sign reading "Malware." The background features lines of computer code and graphics, creating a sense of cybersecurity threat.](https://unit42.paloaltonetworks.com/wp-content/uploads/2026/08/07_Malware_Category_1920x900-3-786x368.jpg)  
  [![category icon](https://unit42.paloaltonetworks.com/wp-content/uploads/2024/06/icon-threat-research.svg)Threat Research](https://unit42.paloaltonetworks.com/category/threat-research/) August 11, 2026 [#### Kimwolf v7: An Evolution of the Kimwolf Botnet](https://unit42.paloaltonetworks.com/kimwolf-v7-botnet-malware/)

* [Android APK](https://unit42.paloaltonetworks.com/tag/android-apk/ "Android APK")

* [Ethereum](https://unit42.paloaltonetworks.com/tag/ethereum/ "Ethereum")

* [HTTP](https://unit42.paloaltonetworks.com/tag/http/ "HTTP")  
  [Read now ![Right arrow](https://unit42.paloaltonetworks.com/wp-content/themes/unit42-v6/dist/images/icons/icon-right-arrow-withtail.svg)](https://unit42.paloaltonetworks.com/kimwolf-v7-botnet-malware/ "Kimwolf v7: An Evolution of the Kimwolf Botnet")  
  ![Pictorial representatiom pf Aeternum's blockchain C2. A close-up of a computer circuit board with a central microchip is depicted. Red digital data streams in the form of glowing binary numbers and arrows appear to flow in and out of the chip. The scene is illuminated with a futuristic blue and red glow.](https://unit42.paloaltonetworks.com/wp-content/uploads/2026/08/04_Malware_Category_1920x900-4-786x368.jpg)  
  [![category icon](https://unit42.paloaltonetworks.com/wp-content/uploads/2024/06/icon-threat-research.svg)Threat Research](https://unit42.paloaltonetworks.com/category/threat-research/) August 10, 2026 [#### The Permanent Threat: Analyzing Aeternum's Blockchain-Based C2 Operations and Communications](https://unit42.paloaltonetworks.com/aeternum-blockchain-c2-analysis/)

* [Aeternum](https://unit42.paloaltonetworks.com/tag/aeternum/ "Aeternum")

* [Infection chain](https://unit42.paloaltonetworks.com/tag/infection-chain/ "infection chain")

* [JSON](https://unit42.paloaltonetworks.com/tag/json/ "JSON")  
  [Read now ![Right arrow](https://unit42.paloaltonetworks.com/wp-content/themes/unit42-v6/dist/images/icons/icon-right-arrow-withtail.svg)](https://unit42.paloaltonetworks.com/aeternum-blockchain-c2-analysis/ "The Permanent Threat: Analyzing Aeternum’s Blockchain-Based C2 Operations and Communications")  
  ![Pictorial representation of ChainDrop, a self-propagating npm worm. An artistic depiction of a digital workspace featuring an open laptop with a red virus on the screen.](https://unit42.paloaltonetworks.com/wp-content/uploads/2026/08/03_Malware_Category_1920x900-7-786x368.jpg)  
  [![category icon](https://unit42.paloaltonetworks.com/wp-content/uploads/2024/07/top-threats.svg)High Profile Threats](https://unit42.paloaltonetworks.com/category/top-cyberthreats/) August 6, 2026 [#### ChainDrop: Inside a Self-Propagating npm Worm](https://unit42.paloaltonetworks.com/chaindrop-npm-worm-analysis/)

* [Blockchain](https://unit42.paloaltonetworks.com/tag/blockchain/ "blockchain")

* [ChainDrop](https://unit42.paloaltonetworks.com/tag/chaindrop/ "ChainDrop")

* [Claude code](https://unit42.paloaltonetworks.com/tag/claude-code/ "Claude code")  
  [Read now ![Right arrow](https://unit42.paloaltonetworks.com/wp-content/themes/unit42-v6/dist/images/icons/icon-right-arrow-withtail.svg)](https://unit42.paloaltonetworks.com/chaindrop-npm-worm-analysis/ "ChainDrop: Inside a Self-Propagating npm Worm")

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