Date: 17 May 1994 08:17:49 -0400 From: Pete Hammes Subject: ASSIST 94-18 To: assist-bulletin@assist.ims.disa.MIL Content-transfer-encoding: 7BIT -----BEGIN PRIVACY-ENHANCED MESSAGE----- Proc-Type: 4,MIC-CLEAR Content-Domain: RFC822 Originator-Certificate: MIICozCCAgwCAREwDQYJKoZIhvcNAQECBQAwgYYxC zAJBgNVBAYTAlVTMSswKQYDVQQKEyJEZWZlbnNlIEluZm9ybWF0aW9uIFN5c3Rlb XMgQWdlbmN5MTAwLgYDVQQLEydDZW50ZXIgZm9yIEluZm9ybWF0aW9uIFN5c3Rlb XMgU2VjdXJpdHkxGDAWBgNVBAsTD0NvdW50ZXJtZWFzdXJlczAeFw05MzEyMDkxO DU5MTZaFw05NTEyMDkxODU5MTZaMIGxMQswCQYDVQQGEwJVUzErMCkGA1UEChMiR GVmZW5zZSBJbmZvcm1hdGlvbiBTeXN0ZW1zIEFnZW5jeTEwMC4GA1UECxMnQ2Vud GVyIGZvciBJbmZvcm1hdGlvbiBTeXN0ZW1zIFNlY3VyaXR5MRgwFgYDVQQLEw9Db 3VudGVybWVhc3VyZXMxEzARBgNVBAsTCk9wZXJhdGlvbnMxFDASBgNVBAMTC1Bld GUgSGFtbWVzMIGaMAoGBFUIAQECAgQAA4GLADCBhwKBgQDFFJkcaDOuS+6Ai2vmT bwY6JRbhdzPsl6X60hnXruOw2WvrAhc8BTFB+id75m3M55i+Th6MxWH20QHyQq5u yVghOu/s37OxIrj7irNPjtUdPv8b2m4hNGEW53QH6GmXkxLmgLzOhookpoYPC+uw 2MzibDnleVI50d2m//XsWs7hwIBAzANBgkqhkiG9w0BAQIFAAOBgQDHH6CmBoyWU zPlqVnEWYKIBsifqdTJzkKfnoST7NDRIakUP49FP86Cyy1+2AKpUCWaxjq+wGHCH RCNFCCrOwdC9z8XwJal/c69ml6eLRhOoX77ANndpU9E5+eHxP+6Ute6lc63K7+Lz 5xOULjmgaMmKDkTXveVcQO6R2CTY37vcA== Issuer-Certificate: MIICNTCCAZ4CASIwDQYJKoZIhvcNAQECBQAwRDELMAkGA 1UEBhMCVVMxCzAJBgNVBAgTAk1EMSgwJgYDVQQKEx9UcnVzdGVkIEluZm9ybWF0a W9uIFN5c3RlbXMgUENBMB4XDTk0MDIyNTE0NDkxMloXDTk0MDMwNzE0NDkxMlowg YYxCzAJBgNVBAYTAlVTMSswKQYDVQQKEyJEZWZlbnNlIEluZm9ybWF0aW9uIFN5c 3RlbXMgQWdlbmN5MTAwLgYDVQQLEydDZW50ZXIgZm9yIEluZm9ybWF0aW9uIFN5c 3RlbXMgU2VjdXJpdHkxGDAWBgNVBAsTD0NvdW50ZXJtZWFzdXJlczCBmjAKBgRVC AEBAgIEAAOBiwAwgYcCgYEA19l6BN7iTGYEU61qJETIjBh3iAeHzoL8sZ5KwFRZD S/a1KnYlD1zJHR/KeQCOBWW2HzX43TFLCNGU7UD9i6m8AymLe5IJf/bGh0Rne7Jd Q1GAOLw7/J4hE57IMbGETZpzeU1D9IYxiERRNio/oa422lUlS9JZHLA5jaPNcUrX P8CAQMwDQYJKoZIhvcNAQECBQADgYEApkliqAdudoOxvOFmQkOZbSgtlpn61VcNC R7azDNJa2ulevaebptwSTs2OvMeuR/J0Ez4TC7XrJXLVjI5huRAqc+EWGRpZYRMa CARZyE7gGYjUqS7DIQazfskeWiB8zheyW5tCVn+jnB09AZXtgbM6qRjyqrmSdCpg CtfgazIKqI= Issuer-Certificate: MIIB8jCCAVsCAQEwDQYJKoZIhvcNAQECBQAwRDELMAkGA 1UEBhMCVVMxCzAJBgNVBAgTAk1EMSgwJgYDVQQKEx9UcnVzdGVkIEluZm9ybWF0a W9uIFN5c3RlbXMgUENBMB4XDTkzMDUyODE3MTEyN1oXDTk1MDUyODE3MTEyN1owR DELMAkGA1UEBhMCVVMxCzAJBgNVBAgTAk1EMSgwJgYDVQQKEx9UcnVzdGVkIEluZ m9ybWF0aW9uIFN5c3RlbXMgUENBMIGaMAoGBFUIAQECAgQAA4GLADCBhwKBgQDbL xaRlS3u54yyRgVDI5dcE9nlasL8fJqOGlyo7xH2FZnr3kUfsFj7OGiYsr6UbvqwK nyfMIRUrXDUa64leGmft3SK27psDUHOynRSCc40d/HrDf810U5tnTamBKUIMqivK 4GoL0tMRA1eX6hALAvLLgK1HbnwZAo6GqQGW8CIJQIBAzANBgkqhkiG9w0BAQIFA AOBgQDBp5aC6oV6IuFi8JCctq57bew604HHNllgjjp7zdXafq6jctRg2g91k/yFW h19bJC/tNrb0WVwuZOs5L/FToPMNIIHzaW/YSROBmyhTDYaKHZGj0P1+iNjMbHt9 dm1QEHGIfKgBwFidItnOa74DfkXdijlPRnr/+E2Ib6PM+hEfQ== MIC-Info: RSA-MD5,RSA,wl/CwdvazLMtUhTdjIfep4QF6/S8I6B9/1tVHx8eRJu EDkfyROEXs2AmDqhqLODB9YijJ+F1CBqO0cAPleKaUchl2FemI2pM0utwY7Elg4K EHmWo/Fml7uTDxk4wTYsBVON9XGPsOqIpxyOkhA93wCOfNeJqQ5eKDgCsKpxzZxQ = <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Automated Systems Security Incident Support Team _____ ___ ___ _____ ___ _____ | / /\ / \ / \ | / \ | | / Integritas / \ \___ \___ | \___ | | < et /____\ \ \ | \ | | \ Celeritas / \ \___/ \___/ __|__ \___/ | |_____\ <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Bulletin 94-18 Release date: 17 May 94, 08:15 AM EDT SUBJECT: Trojan Attack on Chinon CD-ROM Drives. SUMMARY: A Trojan-horse program, CD-IT.ZIP, masquerading as an improved driver for Chinon CD-ROM drives, corrupts system files and the hard disk. BACKGROUND: Chinon America has released information concerning a Trojan Horse program masquerading as an improved driver for Chinon CD-ROM drives. The following text is the press release from Chinon America: TORRANCE, CALIFORNIA, U.S.A., 1994 APR 29 (NB) -- A new "Trojan Horse" computer virus is on the Internet and is labeled with the name of the fourth largest manufacturer of compact disc read-only memory (CD-ROM) drives. Chinon America, Incorporated, the company whose name has been improperly used on the rogue program, is warning IBM and compatible personal computer (PC) users to beware of the program known as "CD-IT.ZIP." A Chinon CD-ROM drive user brought the program to the company's attention after downloading it from a Baltimore, Maryland Fidonet server. One of the clues that the virus, masquerading as a utility program, wasn't on the up-and-up was that it purports "to enable read/write to your CD-ROM drive," a physically impossible task. CD-IT is listed as authored by Joseph S. Shiner, couriered by HDA, and copyrighted by Chinon Products. Chinon America told Newsbytes it has no division by that name. Other clues were obscenities in the documentation as well as a line indicating that HDA stands for Haven't Decided a Name Yet. David Cole, director of research and development for Chinon, told Newsbytes that the company knows of no one who has actually been infected by the program. Cole said the virus isn't particularly clever or dynamic, but none of the virus software the company tried was able to eradicate the rogue program. Chinon officials declined to comment on what antivirus software programs were used. If CD-IT is actually run, it causes the computer to lock up, forcing a reboot, and then stays in memory, corrupting critical system files on the hard disk. Nothing but a high-level reformat of the hard disk drive will eradicate the virus at this point, a move that sacrifices all data on the drive. It will also corrupt any network volumes available. "We felt that it was our responsibility as a member of the computing community to alert Internet users of this dangerous virus that is being distributed with our name on it. Even though we have nothing to do with the virus is it particularly disturbing for us to think that many of our loyal customers could be duped into believing that the software is ours," Cole explained. Chinon is encouraging anyone who might have information that could lead to the arrest and prosecution of the parties responsible for CD-IT to call the company at 310-533-0274.. In addition, the company has notified the major distributors of virus protection software, such as Symantec and McAfee Associates, so they may update their programs to detect and eradicate CD-IT. (Linda Rohrbough/19940429/Press Contact: Rolland Going, The Terpin Group for Chinon, tel 310-798-7875, fax 310-798-7825; Public Contact: Chinon, CD-IT Information, 310-533-0274) IMPACT: The program is not dangerous if not run, but can cause serious damage to a hard drive if executed. Once in memory, the program destroys system files, and a format of the infected drive is then required. At the time this bulletin was issued, ASSIST and other FIRST organizations do not know of any anti-virus software that detects this Trojan. RECOMMENDED SOLUTION: Do not install CD-IT.ZIP on any computer systems. If you have already installed and executed the file, shut down the system immediately. Anti-virus software vendors are working on detection and repair utilities for this Trojan, so you should check with your anti-virus vendor to see if they have a detection/repair utility available. If not, boot from a clean, locked floppy. If you can still access your hard disk, backup any important files that were not included in your last backup, reformat the drive and restore it from your last backup. ASSIST is an element of the Defense Information Systems Agency (DISA), Center for Information Systems Security (CISS), that provides service to the entire DoD community. If you are a constituent of the DoD and have any questions about ASSIST or computer security issues, contact ASSIST using one of the methods listed below. If your organization/institution is non-DoD, contact your Forum of Incident Response and Security Teams (FIRST) representative. You can obtain a list of FIRST member organizations and their constituencies by sending email to docserver@first.org with an empty "subject" line and a message body containing the line "send first-contacts". ASSIST INFORMATION RESOURCES: If you would like to be included in the distribution list for these bulletins, send your Milnet (Internet) e-mail address to assist-request@assist.ims.disa.mil. Back issues of ASSIST bulletins, and other security related information, are available from the ASSIST BBS at 703-756-7993/ 1154 DSN 289, and through anonymous FTP from assist.ims.disa.mil (IP address 137.130.234.30). Note: assist.ims.disa.mil will only accept anonymous FTP connections from Milnet addresses that are registered with the NIC or DNS. ASSIST contact information: PHONE: 703-756-7974, DSN 289, duty hours are 06:00 to 22:30 EST Monday through Friday. During off duty hours, weekends, and holidays, ASSIST can be reached via pager at 800-SKY-PAGE (800-759-7243) PIN 2133937. Your page will be answered within 30 minutes, however if a quicker response is required, prefix your phone number with "999". ELECTRONIC MAIL: Send to assist@assist.ims.disa.mil. ASSIST BBS: Leave a message for the "sysop". Privacy Enhanced Mail (PEM): ASSIST uses PEM, a public key encryption tool, to digitally sign all bulletins that are distributed through e-mail. The section of seemingly random characters between the "BEGIN PRIVACY-ENHANCED MESSAGE" and "BEGIN ASSIST BULLETIN" contains machine-readable digital signature information generated by PEM, not corrupted data. PEM software for UNIX systems is available from Trusted Information Systems (TIS) at no cost, and can be obtained via anonymous FTP from ftp.tis.com (IP 192.94.214.100). Note: The TIS software is just one of several implementations of PEM currently available and additional versions are likely to be offered from other sources in the near future. Reference herein to any specific commercial products, process, or service by trade name, trademark manufacturer, or otherwise, does not constitute or imply its endorsement, recommendation, or favoring by ASSIST. The views and opinions of authors expressed herein shall not be used for adverstising or product endorsement purposes. -----END PRIVACY-ENHANCED MESSAGE-----