MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 83292aeef70102ce9350de34fbb6be40a2eb17aa4f3b9a30322ae8f208c79e44. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry


ConnectBack


Vendor detections: 10


Intelligence 10 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 83292aeef70102ce9350de34fbb6be40a2eb17aa4f3b9a30322ae8f208c79e44
SHA3-384 hash: 9472bcb2b6bf445635dee455b55c5cf63d138607ffc688e42208f2a82fb9369824999f32eeaa5e3e496cab4fc525a089
SHA1 hash: 2906a4b1c7b0eaab017b1c2ea2d831bc800668a6
MD5 hash: 0bca53b4a81b8f9a4624c997659fdf63
humanhash: glucose-nevada-colorado-blossom
File name:mshell
Download: download sample
Signature ConnectBack
Create hunting rule
File size:250 bytes
First seen:2025-08-05 20:45:48 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 6:BnX//In8/r1uBxHocmT5Q3RQdygg5XJYD:BvwncrAH3my532D
TLSH T178D080331F0A40DADED4023F6574595CDBBB8D76574962350C50DC050C0D7045F52D75
TrID 50.1% (.) ELF Executable and Linkable format (Linux) (4022/12)
49.8% (.O) ELF Executable and Linkable format (generic) (4000/1)
Magika elf
Reporter abuse_ch
Tags:ConnectBack elf

Intelligence

File Origin
# of uploads :
1
# of downloads :
30
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
Unix.Backdoor.Msfvenom-10012672-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Receives data from a server
Connection attempt
Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Link:
https://www.filescan.io/uploads/68926d9e9ef4d2ff7cec8e07/reports/5da69986-5cce-4e1b-b7da-d587aff58b02/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
x86
Packer:
UPX
Botnet:
unknown
Number of open files:
0
Number of processes launched:
1
Processes remaning?
false
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/83292aeef70102ce9350de34fbb6be40a2eb17aa4f3b9a30322ae8f208c79e44
Behaviour
no suspicious findings
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/915a81ce-0248-416c-80ed-0337aee6b222
Behavior Graph:
Download SVG
%3 guuid=88455a72-1900-0000-1bc8-07d3e50f0000 pid=4069 /usr/bin/sudo guuid=c0524274-1900-0000-1bc8-07d3eb0f0000 pid=4075 /tmp/sample.bin net guuid=88455a72-1900-0000-1bc8-07d3e50f0000 pid=4069->guuid=c0524274-1900-0000-1bc8-07d3eb0f0000 pid=4075 execve cdbbca5a-a8db-5d52-ab46-46775766a584 103.43.18.230:89 guuid=c0524274-1900-0000-1bc8-07d3eb0f0000 pid=4075->cdbbca5a-a8db-5d52-ab46-46775766a584 con
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/6eb6a689-55da-46df-9b4d-7b3ee7438af5
Result
Threat name:
ConnectBack
Create hunting rule
Detection:
malicious
Classification:
troj
Score:
64 / 100
Link:
https://www.joesandbox.com/analysis/1750873
Signature
Found malware configuration
Multi AV Scanner detection for submitted file
Yara detected ConnectBack
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/83292aeef70102ce9350de34fbb6be40a2eb17aa4f3b9a30322ae8f208c79e44
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/83292aeef70102ce9350de34fbb6be40a2eb17aa4f3b9a30322ae8f208c79e44/
Verdict:
Malicious
Threat:
Backdoor.Linux.RevShell
Link:
https://tip.neiki.dev/file/83292aeef70102ce9350de34fbb6be40a2eb17aa4f3b9a30322ae8f208c79e44
Threat name:
Linux.Backdoor.ConnectBack
Create hunting rule
Status:
Malicious
First seen:
2025-08-05 20:38:54 UTC
File Type:
ELF64 Little (Exe)
AV detection:
25 of 37 (67.57%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=qmusv3xxaebm5e2q3y2pxnv6icrowf5kj45zumbsflupecghtzca._file
Result
Malware family:
connectback
Create hunting rule
Score:
  10/10
Tags:
family:connectback linux
Link:
https://tria.ge/reports/250805-zkfmgsytbt/
Malware Config
C2 Extraction:
103.43.18.230:89
Verdict:
Malicious
Tags:
Unix.Backdoor.Msfvenom-10012672-0
YARA:
n/a
Link:
https://app.threat.zone/submission/f81ec4a0-0df1-4b81-bc58-721d35d665cc
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/83292aeef70102ce9350de34fbb6be40a2eb17aa4f3b9a30322ae8f208c79e44

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:Linux_Trojan_Metasploit_69e20012
Create hunting rule
Author:Elastic Security

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

ConnectBack

sh e359935af4f7bc74ecb302eb7c49978c5e1c822d86f55c115cb99af12d09d4fa

ConnectBack

elf 83292aeef70102ce9350de34fbb6be40a2eb17aa4f3b9a30322ae8f208c79e44

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3597109/
  
Delivery method
Distributed via web download
  
Dropped by
SHA256 e359935af4f7bc74ecb302eb7c49978c5e1c822d86f55c115cb99af12d09d4fa
  
Dropped by
MD5 27661cd79ab7cdbe91ede691cb3290ff
  
URLhaus
https://urlhaus.abuse.ch/url/3597111/

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_NXMissing Non-Executable Memory Protectioncritical
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh

Comments