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Application Layer Protocol:DNS
Pisloader uses DNS as its C2 protocol.
Application Layer Protocol:DNS
PlugX can be configured to use DNS for command and control.
Application Layer Protocol:DNS
POWERSOURCE uses DNS TXT records for C2.
Application Layer Protocol:DNS
POWRUNER can use DNS for C2 communications.
Application Layer Protocol:DNS
QUADAGENT uses DNS for C2 communications.
Application Layer Protocol:DNS
RDAT has used DNS to communicate with the C2.
Application Layer Protocol:DNS
Remsec is capable of using DNS for C2.
Application Layer Protocol:DNS
ShadowPad has used DNS tunneling for C2 communications.
Application Layer Protocol:DNS
Shark can use DNS in C2 communications.
Application Layer Protocol:DNS
Sliver can support C2 communications over DNS.
Application Layer Protocol:DNS
SombRAT can communicate over DNS with the C2 server.
Application Layer Protocol:DNS
SOUNDBITE communicates via DNS for C2.
Application Layer Protocol:DNS
SUNBURST used DNS for C2 traffic designed to mimic normal SolarWinds API communications.
Application Layer Protocol:DNS
SysUpdate has used DNS TXT requests as for its C2 communication.
Application Layer Protocol:DNS
TEXTMATE uses DNS TXT records for C2.
Application Layer Protocol:DNS
It's backdoor has communicated to the C2 over the DNS protocol.
Application Layer Protocol:DNS
Uroburos has encoded outbound C2 communications in DNS requests consisting of character strings made to resemble standard domain names. The actual information transmitted by Uroburos is contained in the part of the character string prior to the first ‘.’ character.
Application Layer Protocol:DNS
WellMess has the ability to use DNS tunneling for C2 communications.
Communication Through Removable Media
It uses a tool that captures information from air-gapped computers via an infected USB and transfers it to network-connected computer when the USB is inserted.
Communication Through Removable Media
Part of It's operation involved using CHOPSTICK modules to copy itself to air-gapped machines, using files written to USB sticks to transfer data and command traffic.
Communication Through Removable Media
USBStealer drops commands for a second victim onto a removable media drive inserted into the first victim, and commands are executed when the drive is inserted into the second victim.
Content Injection
Disco has achieved initial access and execution through content injection into DNS, HTTP, and SMB replies to targeted hosts that redirect them to download malicious files.
Content Injection
It has injected content into DNS, HTTP, and SMB replies to redirect specifically-targeted victims to a fake Windows Update page to download malware.
Data Encoding
After encrypting C2 data, BADNEWS converts it into a hexadecimal representation and then encodes it into base64.
Data Encoding
H1N1 obfuscates C2 traffic with an altered version of base64.
Data Encoding
Linux Rabbit sends the payload from the C2 server as an encoded URL parameter.
Data Encoding
Mythic provides various transform functions to encode and/or randomize C2 data.
Data Encoding
Ursnif has used encoded data in HTTP URLs for C2.
Data Encoding:Standard Encoding
C2 traffic from ADVSTORESHELL is encrypted, then encoded with Base64 encoding.
Data Encoding:Standard Encoding
An It HTTP malware variant used Base64 to encode communications to the C2 server.
Data Encoding:Standard Encoding
It has used base64 to encode command and control traffic.
Data Encoding:Standard Encoding
Astaroth encodes data using Base64 before sending it to the C2 server.
Data Encoding:Standard Encoding
AutoIt backdoor has sent a C2 response that was base64-encoded.
Data Encoding:Standard Encoding
BabyShark has encoded data using certutil before exfiltration.
Data Encoding:Standard Encoding
Some Backdoor.Oldrea samples use standard Base64 + bzip2, and some use standard Base64 + reverse XOR + RSA-2048 to decrypt data received from C2 servers.
Data Encoding:Standard Encoding
BADNEWS encodes C2 traffic with base64.
Data Encoding:Standard Encoding
Bisonal has encoded binary data with Base64 and ASCII.
Data Encoding:Standard Encoding
BLINDINGCAN has encoded its C2 traffic with Base64.
Data Encoding:Standard Encoding
Several It tools encode data with base64 when posting it to a C2 server.
Data Encoding:Standard Encoding
BS2005 uses Base64 encoding for communication in the message body of an HTTP request.
Data Encoding:Standard Encoding
Bumblebee has the ability to base64 encode C2 server responses.
Data Encoding:Standard Encoding
It encodes the message body of HTTP traffic with Base64.
Data Encoding:Standard Encoding
Chaes has used Base64 to encode C2 communications.
Data Encoding:Standard Encoding
CharmPower can send additional modules over C2 encoded with base64.
Data Encoding:Standard Encoding
ChChes can encode C2 data with a custom technique that utilizes Base64.
Data Encoding:Standard Encoding
Cobalt Strike can use Base64, URL-safe Base64, or NetBIOS encoding in its C2 traffic.
Data Encoding:Standard Encoding
Cobian RAT obfuscates communications with the C2 server using Base64 encoding.
Data Encoding:Standard Encoding
CORESHELL C2 messages are Base64-encoded.
Data Encoding:Standard Encoding
CreepySnail can use Base64 to encode its C2 traffic.
Data Encoding:Standard Encoding
DarkWatchman encodes data using hexadecimal representation before sending it to the C2 server.
Data Encoding:Standard Encoding
Daserf uses custom base64 encoding to obfuscate HTTP traffic.
Data Encoding:Standard Encoding
Denis encodes the data sent to the server in Base64.
Data Encoding:Standard Encoding
Dipsind encodes C2 traffic with base64.
Data Encoding:Standard Encoding
DnsSystem can Base64 encode data sent to C2.
Data Encoding:Standard Encoding
down_new has the ability to base64 encode C2 communications.
Data Encoding:Standard Encoding
Ebury has encoded C2 traffic in hexadecimal format.
Data Encoding:Standard Encoding
Elise exfiltrates data using cookie values that are Base64-encoded.
Data Encoding:Standard Encoding
Emotet has used Google’s Protobufs to serialize data sent to and from the C2 server.
Data Encoding:Standard Encoding
Some Felismus samples use a custom method for C2 traffic that utilizes Base64.
Data Encoding:Standard Encoding
Flagpro has encoded bidirectional data communications between a target system and C2 server using Base64.
Data Encoding:Standard Encoding
Fysbis can use Base64 to encode its C2 traffic.
Data Encoding:Standard Encoding
gh0st RAT has used Zlib to compress C2 communications data before encrypting it.
Data Encoding:Standard Encoding
GrimAgent can base64 encode C2 replies.
Data Encoding:Standard Encoding
It has used ASCII encoding for C2 traffic.
Data Encoding:Standard Encoding
For C2 over HTTP, Helminth encodes data with base64 and sends it via the "Cookie" field of HTTP requests. For C2 over DNS, Helminth converts ASCII characters into their hexadecimal values and sends the data in cleartext.
Data Encoding:Standard Encoding
HOPLIGHT has utilized Zlib compression to obfuscate the communications payload.
Data Encoding:Standard Encoding
Ixeshe uses custom Base64 encoding schemes to obfuscate command and control traffic in the message body of HTTP requests.
Data Encoding:Standard Encoding
A JHUHUGIT variant encodes C2 POST data base64.
Data Encoding:Standard Encoding
Kazuar encodes communications to the C2 server in Base64.
Data Encoding:Standard Encoding
Kessel has exfiltrated data via hexadecimal-encoded subdomain fields of DNS queries.
Data Encoding:Standard Encoding
Kevin can Base32 encode chunks of output files during exfiltration.
Data Encoding:Standard Encoding
KONNI has used a custom base64 key to encode stolen data before exfiltration.
Data Encoding:Standard Encoding
A It malware sample encodes data with base64.
Data Encoding:Standard Encoding
It has used base64 encoding.
Data Encoding:Standard Encoding
Mafalda can encode data using Base64 prior to exfiltration.
Data Encoding:Standard Encoding
MechaFlounder has the ability to use base16 encoded strings in C2.
Data Encoding:Standard Encoding
Mis-Type uses Base64 encoding for C2 traffic.
Data Encoding:Standard Encoding
Misdat network traffic is Base64-encoded plaintext.
Data Encoding:Standard Encoding
Mongall can use Base64 to encode information sent to its C2.
Data Encoding:Standard Encoding
More_eggs has used basE91 encoding, along with encryption, for C2 communication.
Data Encoding:Standard Encoding
Mori can use Base64 encoded JSON libraries used in C2.
Data Encoding:Standard Encoding
It has used tools to encode C2 communications including Base64 encoding.
Data Encoding:Standard Encoding
njRAT uses Base64 encoding for C2 traffic.
Data Encoding:Standard Encoding
Octopus has encoded C2 communications in Base64.
Data Encoding:Standard Encoding
Okrum has used base64 to encode C2 communication.
Data Encoding:Standard Encoding
OopsIE encodes data in hexadecimal format over the C2 channel.
Data Encoding:Standard Encoding
OSX_OCEANLOTUS.D has used zlib to compress all data after 0x52 for the custom TCP C2 protocol.
Data Encoding:Standard Encoding
It used Base64 to encode C2 traffic.
Data Encoding:Standard Encoding
PingPull can encode C2 traffic with Base64.
Data Encoding:Standard Encoding
Responses from the Pisloader C2 server are base32-encoded.
Data Encoding:Standard Encoding
PowerShower has the ability to encode C2 communications with base64 encoding.
Data Encoding:Standard Encoding
POWERSTATS encoded C2 traffic with base64.
Data Encoding:Standard Encoding
POWRUNER can use base64 encoded C2 communications.
Data Encoding:Standard Encoding
Prikormka encodes C2 traffic with Base64.
Data Encoding:Standard Encoding
QakBot can Base64 encode system information sent to C2.
Data Encoding:Standard Encoding
QUADAGENT encodes C2 communications with base64.
Data Encoding:Standard Encoding
QUIETCANARY can base64 encode C2 communications.
Data Encoding:Standard Encoding
Ramsay has used base64 to encode its C2 traffic.
Data Encoding:Standard Encoding
RDAT can communicate with the C2 via base32-encoded subdomains.
Data Encoding:Standard Encoding
Revenge RAT uses Base64 to encode information sent to the C2 server.