MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 80b18e4ea12101e482f9a9b0b880c2364a9f8879b9c0dd07939b841aa946ca24. 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: 9


Intelligence 9 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 80b18e4ea12101e482f9a9b0b880c2364a9f8879b9c0dd07939b841aa946ca24
SHA3-384 hash: 074693ecc1d2921ebe686dfda638794668a9359d4fc9160e4c61c4fcfc9a128099f01c5341a0144addf1073a27cd3002
SHA1 hash: ef618327f09e86b101e7aa38eb99f3ac8a9a1519
MD5 hash: 9494fbaf4434a98a6c7586401f353d2b
humanhash: mountain-pennsylvania-may-nebraska
File name:reverse.elf
Download: download sample
Signature ConnectBack
Create hunting rule
File size:250 bytes
First seen:2026-03-02 22:58:54 UTC
Last seen:2026-03-03 09:37:43 UTC
File type: elf
MIME type:application/x-executable
ssdeep 6:BnX//In8/r1uBxHocmTH4Q3RQdygg5XJYD:BvwncrAH3mt532D
TLSH T162D080330B0A40DADBD4063F7574595CD77B9976574D73350C50DD010C09A445F52C75
TrID 50.1% (.) ELF Executable and Linkable format (Linux) (4022/12)
49.8% (.O) ELF Executable and Linkable format (generic) (4000/1)
Magika unknown
Reporter 1ZRR4H
Tags:141.11.107.134 ConnectBack elf

Intelligence

File Origin
# of uploads :
2
# of downloads :
67
Origin country :
CL CL
Vendor Threat Intelligence
No detections
Detection(s):
Unix.Backdoor.Msfvenom-10012672-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Connection attempt
Receives data from a server
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Link:
https://www.filescan.io/uploads/69a6164291ad9169e5357a95/reports/83566e15-f0dd-4dfa-97cc-09fe5650bccc/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/80b18e4ea12101e482f9a9b0b880c2364a9f8879b9c0dd07939b841aa946ca24
Behaviour
no suspicious findings
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Verdict:
Malicious
File Type:
elf.64.le
Link:
https://opentip.kaspersky.com/80b18e4ea12101e482f9a9b0b880c2364a9f8879b9c0dd07939b841aa946ca24/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/79b45d71-9f18-4be7-9460-26c06931c66b
Behavior Graph:
Download SVG
%3 guuid=c0909c55-1600-0000-e5fa-71d507100000 pid=4103 /usr/bin/sudo guuid=6656fe57-1600-0000-e5fa-71d510100000 pid=4112 /tmp/sample.bin net guuid=c0909c55-1600-0000-e5fa-71d507100000 pid=4103->guuid=6656fe57-1600-0000-e5fa-71d510100000 pid=4112 execve d6eefda1-b4ee-56b7-910e-059232a240da 141.11.107.134:4040 guuid=6656fe57-1600-0000-e5fa-71d510100000 pid=4112->d6eefda1-b4ee-56b7-910e-059232a240da con
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/5009fb57-1d7c-4203-b597-798a5b3e9f80
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/80b18e4ea12101e482f9a9b0b880c2364a9f8879b9c0dd07939b841aa946ca24
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/80b18e4ea12101e482f9a9b0b880c2364a9f8879b9c0dd07939b841aa946ca24/
Threat name:
Linux.Backdoor.ConnectBack
Create hunting rule
Status:
Malicious
First seen:
2026-03-02 22:59:43 UTC
File Type:
ELF64 Little (Exe)
AV detection:
15 of 24 (62.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=qcyy4tvbeea6jaxzvgylragcgzfj7cdzxhan2b4ttocbvkkgzisa._file
Result
Malware family:
connectback
Create hunting rule
Score:
  10/10
Tags:
family:connectback linux
Link:
https://tria.ge/reports/260302-2ygg2sdv9d/
Malware Config
C2 Extraction:
141.11.107.134:4040
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.29
Link:
https://yomi.yoroi.company/submissions/80b18e4ea12101e482f9a9b0b880c2364a9f8879b9c0dd07939b841aa946ca24

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

elf 80b18e4ea12101e482f9a9b0b880c2364a9f8879b9c0dd07939b841aa946ca24

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3788955/
  
Delivery method
Distributed via web download

Comments