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ColdFire – Golang Malware Development Library

365

Golang malware development framework

Introduction

ColdFire provides various methods useful for malware development in Golang.

Most functions are compatible with both Linux and Windows operating systems.

Installation

go get github.com/redcode-labs/ColdFire

Types of functions included

  • Logging
  • Auxiliary
  • Reconnaissance
  • Evasion
  • Administration
  • Sandbox detection
  • Disruptive

Documentation

Logging functions

func F(s string, arg ...interface{}) string 
Alias for fmt.Sprintf
func PrintGood(msg string)
Print good status message
func PrintInfo(msg string)
Print info status message
func PrintError(msg string)
Print error status message
func PrintWarning(msg string)
Print warning status message

Auxiliary functions
<div class="snippet-clipboard-content position-relative" data-snippet-clipboard-copy-content="func FileToSlice(file string) []string Read from file and return slice with lines delimited with newline. func Contains(s interface{}, elem interface{}) bool Check if interface type contains another interface type. func StrToInt(string_integer string) int Convert string to int. func IntToStr(i int) string Converts int to string. func IntervalToSeconds(interval string) int Converts given time interval to seconds. func RandomInt(min int, max int) int Returns a random int from range. func RandomSelectStr(list []string) string Returns a random selection from slice of strings. func RandomSelectInt(list []int) int Returns a random selection from slice of ints. func RandomSelectStrNested(list [][]string) []string Returns a random selection from nested string slice. func RemoveNewlines(s string) string Removes "\n" and "\r" characters from string. func FullRemove(str string, to_remove string) string Removes all occurences of substring. func RemoveDuplicatesStr(slice []string) []string Removes duplicates from string slice. func RemoveDuplicatesInt(slice []int) []int Removes duplicates from int slice. func ContainsAny(str string, elements []string) bool Returns true if slice contains a string. func RandomString(n int) string Generates random string of length [n] func ExitOnError(e error) Handle errors func Md5Hash(str string) string Returns MD5 checksum of a string func MakeZip(zip_file string, files []string) error Creates a zip archive from a list of files func ReadFile(filename string) (string, error) Read contents of a file. func WriteFile(filename string) error Write contents to a file. func B64d(str string) string Returns a base64 decoded string func B64e(str string) string Returns a base64 encoded string func FileExists(file string) bool Check if file exists. func ParseCidr(cidr string) ([]string, error) Returns a slice containing all possible IP addresses in the given range. “>

func FileToSlice(file string) []string
Read from file and return slice with lines delimited with newline.
func Contains(s interface{}, elem interface{}) bool 
Check if interface type contains another interface type.
func StrToInt(string_integer string) int 
Convert string to int.
func IntToStr(i int) string 
Converts int to string. 
func IntervalToSeconds(interval string) int 
Converts given time interval to seconds.
func RandomInt(min int, max int) int
Returns a random int from range.
func RandomSelectStr(list []string) string 
Returns a random selection from slice of strings. 
func RandomSelectInt(list []int) int 
Returns a random selection from slice of ints. 
func RandomSelectStrNested(list [][]string) []string 
Returns a random selection from nested string slice.
func RemoveNewlines(s string) string 
Removes "\n" and "\r" characters from string.
func FullRemove(str string, to_remove string) string 
Removes all occurences of substring.
func RemoveDuplicatesStr(slice []string) []string 
Removes duplicates from string slice.
func RemoveDuplicatesInt(slice []int) []int 
Removes duplicates from int slice.
func ContainsAny(str string, elements []string) bool 
Returns true if slice contains a string.
func RandomString(n int) string
Generates random string of length [n]
func ExitOnError(e error)
Handle errors
func Md5Hash(str string) string
Returns MD5 checksum of a string
func MakeZip(zip_file string, files []string) error 
Creates a zip archive from a list of files
func ReadFile(filename string) (string, error) 
Read contents of a file.
func WriteFile(filename string) error 
Write contents to a file.
func B64d(str string) string 
Returns a base64 decoded string
func B64e(str string) string 
Returns a base64 encoded string
func FileExists(file string) bool
Check if file exists. 
func ParseCidr(cidr string) ([]string, error) 
Returns a slice containing all possible IP addresses in the given range.

Reconnaissance functions
<div class="snippet-clipboard-content position-relative" data-snippet-clipboard-copy-content=" func GetLocalIp() string Returns a local IP address of the machine. func GetGlobalIp() string Returns a global IP address of the machine. func IsRoot() bool Check if user has administrative privilleges. func Processes() (map[int]string, error) Returns all processes' PIDs and their corresponding names. func Iface() string, string Returns name of currently used wireless interface and it’s MAC address. func Ifaces() []string Returns slice containing names of all local interfaces. func Disks() ([]string, error) Lists local storage devices func Users() []string, err Returns list of known users. func Info() map[string]string Returns basic system information. Possible fields: username, hostname, go_os, os, platform, cpu_num, kernel, core, local_ip, ap_ip, global_ip, mac. If the field cannot be resolved, it defaults to “N/A” value. func DnsLookup(hostname string) ([]string, error) Performs DNS lookup func RdnsLookup(ip string) ([]string, error) Performs reverse DNS lookup func HostsPassive(interval string) []string, err Passively discovers active hosts on a network using ARP monitoring. Discovery time can be changed using <interval> argument. func FilePermissions(filename string) (bool,bool) Checks if file has read and write permissions. func Portscan(target string, timeout, threads int) []int Returns list of open ports on target. func PortscanSingle(target string, port int) bool Returns true if selected port is open. func BannerGrab(target string, port int) (string, error) Grabs a service banner string from a given port. func Networks() ([]string, error) Returns list of nearby wireless networks. “>


func GetLocalIp() string
Returns a local IP address of the machine.
func GetGlobalIp() string
Returns a global IP address of the machine.
func IsRoot() bool
Check if user has administrative privilleges.
func Processes() (map[int]string, error)
Returns all processes' PIDs and their corresponding names.
func Iface() string, string
Returns name of currently used wireless interface and it's MAC address. 
func Ifaces() []string
Returns slice containing names of all local interfaces.
func Disks() ([]string, error) 
Lists local storage devices
func Users() []string, err
Returns list of known users.
func Info() map[string]string 
Returns basic system information. 
Possible fields: username, hostname, go_os, os, 
platform, cpu_num, kernel, core, local_ip, ap_ip, global_ip, mac.
If the field cannot be resolved, it defaults to "N/A" value.
func DnsLookup(hostname string) ([]string, error) 
Performs DNS lookup
func RdnsLookup(ip string) ([]string, error) 
Performs reverse DNS lookup
func HostsPassive(interval string) []string, err
Passively discovers active hosts on a network using ARP monitoring.
Discovery time can be changed using <interval> argument.







func FilePermissions(filename string) (bool,bool) 
Checks if file has read and write permissions.
func Portscan(target string, timeout, threads int) []int 
Returns list of open ports on target.
func PortscanSingle(target string, port int) bool 
Returns true if selected port is open.
func BannerGrab(target string, port int) (string, error) 
Grabs a service banner string from a given port.
func Networks() ([]string, error) 
Returns list of nearby wireless ne tworks.

Administration functions

func CmdOut(command string) string, error
Execute a command and return it's output.
func CmdOutPlatform(commands map[string]string) (string, error) 
Executes commands in platform-aware mode.
For example, passing {"windows":"dir", "linux":"ls"} will execute different command, 
based on platform the implant was launched on.
func CmdRun(command string)
Unlike cmd_out(), cmd_run does not return anything, and prints output and error to STDOUT.
func CmdDir(dirs_cmd map[string]string) ([]string, error) 
Executes commands in directory-aware mode.
For example, passing {"/etc" : "ls"} will execute command "ls" under /etc directory.
func CmdBlind(command string)
Run command without supervision, do not print any output.
func CreateUser(username, password string) error
Creates a new user on the system.
func Bind(port int)
Run a bind shell on a given port.
func Reverse(host string, port int)
Run a reverse shell.
func SendDataTcp(host string, port int, data string) error 
Sends string to a remote host using TCP protocol.
func SendDataUdp(host string, port int, data string) error 
Sends string to a remote host using UDP protocol.
func Download(url string) error
Downloads a file from url and save it under the same name.
func CopyFile(src string, dst string) error
Copy a file from one place to another
func CurrentDirFiles() []string, error
Returns list of files from current directory

Evasion functions

func PkillPid(pid int) error
Kill process by PID.
func PkillName(name string) errror
Kill all processes that contain [name].
func PkillAv() err
Kill most common AV processes.
func Wait(interval string)
Does nothing for a given interval of time.
func Remove()
Removes binary from the host.
func SetTtl(interval string)
Set time-to-live of the binary.
Should be launched as goroutine.
func ClearLogs() error
Clears most system logs.

Sandbox detection functions
<div class="snippet-clipboard-content position-relative" data-snippet-clipboard-copy-content="func SandboxFilepath() bool Detect sandbox by looking for common sandbox filepaths. Compatible only with windows. func SandboxProc() bool Detect sandbox by looking for common sandbox processes. func SandboxSleep() bool Detect sandbox by looking for sleep-accelleration mechanism. func SandboxDisk(size int) bool Detect sandbox by looking for abnormally small disk size. func SandboxCpu(cores int) bool Detect sandbox by looking for abnormally small number of cpu cores. func SandboxRam(ram_mb int) bool Detect sandbox by looking for abnormally small amount of RAM. func SandboxMac() bool Detect sandbox by looking for sandbox-specific MAC address of the localhost. func SandboxUtc() bool Detect sandbox by looking for properly set UTC time zone. func SandboxProcnum(proc_num int) bool Detect sandbox if small number of running processes func SandboxTmp(entries int) bool Detect sandbox if small number of entries under remporary dir func SandboxAll() bool Detect sandbox using all sandbox detection methods. Returns true if any sandbox-detection method returns true. func SandboxAll_n(num int) bool Detect sandbox using all sandbox detection methods. Returns true if at least detection methods return true. “>

func SandboxFilepath() bool 
Detect sandbox by looking for common sandbox filepaths.
Compatible only with windows.
func SandboxProc() bool 
Detect sandbox by looking for common sandbox processes.
func SandboxSleep() bool
Detect sandbox by looking for sleep-accelleration mechanism.
func SandboxDisk(size int) bool
Detect sandbox by looking for abnormally small disk size.
func SandboxCpu(cores int) bool
Detect sandbox by looking for abnormally small number of cpu cores.
func SandboxRam(ram_mb int) bool
Detect sandbox by looking for abnormally small amount of RAM.
func SandboxMac() bool
Detect sandbox by looking for sandbox-specific MAC address of the localhost. 
func SandboxUtc() bool
Detect sandbox by looking for properly set UTC time zone. 
func SandboxProcnum(proc_num int) bool 
Detect sandbox if small number of running p rocesses
func SandboxTmp(entries int) bool 
Detect sandbox if small number of entries under remporary dir
func SandboxAll() bool
Detect sandbox using all sandbox detection methods.
Returns true if any sandbox-detection method returns true. 
func SandboxAll_n(num int) bool
Detect sandbox using all sandbox detection methods.
Returns true if at least <num> detection methods return true.

Disruptive functions
<div class="snippet-clipboard-content position-relative" data-snippet-clipboard-copy-content="func WifiDisconnect() error Disconnects from wireless access point func Wipe() error Wipes out entire filesystem. func EraseMbr(device string, partition_table bool) error Erases MBR sector of a device. If is true, erases also partition table. func Forkbomb() Runs a forkbomb. func Shutdown() error Reboot the machine. “>

func WifiDisconnect() error 
Disconnects from wireless access point
func Wipe() error
Wipes out entire filesystem.
func EraseMbr(device string, partition_table bool) error 
Erases MBR sector of a device.
If <partition_table> is true, erases also partition table.
func Forkbomb()
Runs a forkbomb.
func Shutdown() error
Reboot the machine.

Requirements

"github.com/google/gopacket"
"github.com/google/gopacket/layers"
"github.com/google/gopacket/pcap"
"github.com/robfig/cron"
"github.com/anvie/port-scanner"
"github.com/matishsiao/goInfo"
"github.com/fatih/color"
"github.com/minio/minio/pkg/disk"
"github.com/dustin/go-humanize"
"github.com/mitchellh/go-ps"

Disclaimer

Developers are not responsible for any misuse regarding this tool. Use it only against systems that you are permitted to attack.

Source : KitPloit – PenTest Tools!

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