MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 721fe1dae758430653e954320e0dfe853670b4f291ece1f80afbf4bc17281ede. 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

NetSupport

Vendor detections: 8

Intelligence 8 IOCs YARA 27 File information Comments

SHA256 hash:	721fe1dae758430653e954320e0dfe853670b4f291ece1f80afbf4bc17281ede
SHA3-384 hash:	26b2d22757b50c9c3081ed632334930fab3160d7530c9d33151060b8fddb7ec43b82866a2427c31e3f5823df0ef6324b
SHA1 hash:	1d39ea4181a21a574a8778dd823ab6e7c704cf34
MD5 hash:	9d5658a50b4ca7f9403b158483492761
humanhash:	paris-one-indigo-fish
File name:	exercise_intersection.pub
Download:	download sample
Signature	NetSupport Create hunting rule
File size:	3'012'553 bytes
First seen:	2026-08-25 20:13:05 UTC
Last seen:	Never
File type:	zip
MIME type:	application/zip
ssdeep	49152:m7VQNfxOPLArATeqn8tPb8WRTnqVLmLELJ6Q40e2Xv5zFJ3p2MP/i6B4s854O6Co:aAUA7qn2okDsCLQ5V3p2uZ4s8SIbmSbU
TLSH	T130D5338FD1874009D7B0B279B20E9FD9C3D823EB7535DD03215B82822F9DAA6D9528F5
Magika	zip
Reporter	aachum
Tags:	5-253-59-121 dropped-by-ACRStealer NetSupport zip

iamaachum

https://self-signed.uneasily.top/exercise_intersection.pub

NetSupport C2: 5.253.59.121

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

Vendor Threat Intelligence

Details

Link:

https://research.acce.ciphertechsolutions.com/results/dce2556f-ab5c-46f4-9bac-65a3afac3aa0/

Detection(s):

PUA.Win.Tool.NetSupport-10022498-8

SecuriteInfo.com.Program.RemoteAdmin.837.11410.22550.UNOFFICIAL

SecuriteInfo.com.Program.RemoteAdmin.837.23370.1523.UNOFFICIAL

SecuriteInfo.com.Program.RemoteAdmin.837.26913.7397.UNOFFICIAL

SecuriteInfo.com.Program.RemoteAdmin.840.7376.24721.UNOFFICIAL

SecuriteInfo.com.Program.RemoteAdmin.937.10530.8571.UNOFFICIAL

SecuriteInfo.com.Program.RemoteAdmin.937.25837.9631.UNOFFICIAL

SecuriteInfo.com.Trojan.RA.587.UNOFFICIAL

SecuriteInfo.com.Trojan.Win32.Netsupportmanager.2448.30245.UNOFFICIAL

SecuriteInfo.com.W32.RemoteAdmin.OOWP-2683.12925.30991.UNOFFICIAL

Verdict:

Malicious

Score:

90.2%

Link:

https://cyber-fortress.com/docs/result/index.php?id=6ac3a23d20ba0e2385cd2ee5

Tags:

infosteal netsup lien

Verdict:

Suspicious

Labled as:

Trojan.Downloader.dd

Link:

https://www.hybrid-analysis.com/sample/721fe1dae758430653e954320e0dfe853670b4f291ece1f80afbf4bc17281ede

Verdict:

Malicious

File Type:

zip

First seen:

2026-08-25T18:24:00Z UTC

Last seen:

2026-08-26T18:27:00Z UTC

Hits:

~10

Link:

https://opentip.kaspersky.com/721fe1dae758430653e954320e0dfe853670b4f291ece1f80afbf4bc17281ede/results?tab=lookup

Score:

83%

Verdict:

Malware

File Type:

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:	ach_NetSupportRAT_Config Create hunting rule
Author:	abuse.ch

Rule name:	BLOWFISH_Constants Create hunting rule
Author:	phoul (@phoul)
Description:	Look for Blowfish constants

Rule name:	Check_OutputDebugStringA_iat Create hunting rule

Rule name:	command_and_control Create hunting rule
Author:	CD_R0M_
Description:	This rule searches for common strings found by malware using C2. Based on a sample used by a Ransomware group

Rule name:	CP_Script_Inject_Detector Create hunting rule
Author:	DiegoAnalytics
Description:	Detects attempts to inject code into another process across PE, ELF, Mach-O binaries

Rule name:	DebuggerCheck__API Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	DebuggerException__ConsoleCtrl Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	DebuggerException__SetConsoleCtrl Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	DetectEncryptedVariants Create hunting rule
Author:	Zinyth
Description:	Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded

Rule name:	FormhookB Create hunting rule
Author:	kevoreilly
Description:	Formbook Anti-hook Bypass

Rule name:	FreddyBearDropper Create hunting rule
Author:	Dwarozh Hoshiar
Description:	Freddy Bear Dropper is dropping a malware through base63 encoded powershell scrip.

Rule name:	golang_bin_JCorn_CSC846 Create hunting rule
Author:	Justin Cornwell
Description:	CSC-846 Golang detection ruleset

Rule name:	Indicator_MiniDumpWriteDump Create hunting rule
Author:	Obscurity Labs LLC
Description:	Detects PE files and PowerShell scripts that use MiniDumpWriteDump either through direct imports or string references

Rule name:	MD5_Constants Create hunting rule
Author:	phoul (@phoul)
Description:	Look for MD5 constants

Rule name:	NetSupport Create hunting rule
Author:	YungBinary
Description:	Detects NetSupport Manager RAT on disk or in memory

Rule name:	pe_detect_tls_callbacks Create hunting rule

Rule name:	PE_Digital_Certificate Create hunting rule
Author:	albertzsigovits

Rule name:	RANSOMWARE Create hunting rule
Author:	ToroGuitar

Rule name:	Suspicious_Process Create hunting rule
Author:	Security Research Team
Description:	Suspicious process creation

Rule name:	Sus_CMD_Powershell_Usage Create hunting rule
Author:	XiAnzheng
Description:	May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)

Rule name:	telebot_framework Create hunting rule
Author:	vietdx.mb

Rule name:	ThreadControl__Context Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	TH_AntiVM_MassHunt_Win_Malware_2026_CYFARE Create hunting rule
Author:	CYFARE
Description:	Detects Windows malware employing anti-VM / anti-sandbox evasion techniques across VMware, VirtualBox, Hyper-V, QEMU, Xen, and generic sandbox environments
Reference:	https://cyfare.net/

Rule name:	VECT_Ransomware Create hunting rule
Author:	Mustafa Bakhit
Description:	Detects activity associated with VECT ransomware. This includes registry modifications and deletions, execution of system and defense-evasion commands, suspicious API usage, mutex creation, file and memory manipulation, ransomware note generation, anti-debugging and anti-analysis techniques, and embedded cryptographic constants (SHA256) characteristic of this malware family. Designed for threat intelligence and malware detection environments.

Rule name:	vmdetect Create hunting rule
Author:	nex
Description:	Possibly employs anti-virtualization techniques

Rule name:	without_attachments Create hunting rule
Author:	Antonio Sanchez <asanchez@hispasec.com>
Description:	Rule to detect the no presence of any attachment
Reference:	http://laboratorio.blogs.hispasec.com/

Rule name:	with_urls Create hunting rule
Author:	Antonio Sanchez <asanchez@hispasec.com>
Description:	Rule to detect the presence of an or several urls
Reference:	http://laboratorio.blogs.hispasec.com/