Scott's Valley Virus

 Virus Name:  Scott's Valley 
 Aliases:     2131, Scott's, Slow-2131 
 V Status:    Rare 
 Discovered:  September, 1990 
 Symptoms:    TSR; .COM and .EXE growth 
 Origin:      Scott's Valley, California, United States 
 Eff Length:  2,131 Bytes 
 Type Code:   PRsA - Parasitic Resident .COM & .EXE Infector 
 Detection Method:  ViruScan, AVTK, F-Prot, NAV, Sweep, IBMAV, 
                    NAVDX, VAlert, PCScan, ChAV, 
                    NShld, LProt, Sweep/N, Innoc, NProt, AVTK/N, 
                    NAV/N, IBMAV/N 
 Removal Instructions:  Delete infected files 
 General Comments: 
       The Scott's Valley virus was discovered in September, 1990 in 
       Scott's Valley, California.  This virus is a memory resident 
       generic infector of .COM and .EXE files, and does not infect 
       The first time a program infected with the Scott's Valley virus is 
       executed, the virus installs itself memory resident as a low system 
       memory TSR of 2,384 bytes.  Interrupt 21 is hooked by the virus. 
       After the virus is memory resident, any .COM or .EXE file executed 
       will be infected with the virus.  .COM files will increase in 
       length by 2,131 bytes.  .EXE files will increase in length between 
       2,131 and 2,140 bytes. 
       Infected programs will contain the following hex string in the 
       virus's code: 5E8BDE909081C63200B912082E. 
       It is unknown if this virus is malicious. 

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