trojaan horse

8/13/2019 Trojaan Horse

1/6

Updated: February 13, 2007 12:17:46 PM

Type: Trojan Horse

Systems Affected: Windows 2000, Windows 95, Windows 9, Windows Me, Windows !T, Windows "er#er 2003,

Windows $P

"y%an&e' an&i#irus (ro)ra%s use Trojan *orse as a )eneri' de&e'&ion w*en de&e'&in) %any indi#idua+ bu& #aried Trojan

*orse (ro)ra%s or w*i'* s(e'ii' deini&ions *a#e no& been 'rea&ed-

.n &*ese 'ases, a )eneri' de&e'&ion is used be'ause i& (ro&e'&s a)ains& %any Trojans &*a& s*are si%i+ar '*ara'&eris&i's-

. a %a+i'ious (ro)ra% does no& ine'& o&*er i+es and does no& au&o%a&i'a++y dis&ribu&e i&se+, &*e (ro)ra% is usua++y

+abe+ed a Trojan *orse- For addi&iona+ inor%a&ion, see &*e o++owin):

W*a& is &*e dieren'e be&ween #iruses, wor%s, and Trojans/

irus na%in) 'on#en&ions

Recommendations

"y%an&e' "e'uri&y es(onse en'oura)es a++ users and ad%inis&ra&ors &o ad*ere &o &*e o++owin) basi' se'uri&y bes&

(ra'&i'es:

Turn o and re%o#e unneeded ser#i'es- y deau+&, %any o(era&in) sys&e%s ins&a++ aui+iary ser#i'es &*a& are

no& 'ri&i'a+, su'* as an FTP ser#er, &e+ne&, and a Web ser#er- T*ese ser#i'es are a#enues o a&&a'- . &*ey are re%o#ed,

b+ended &*rea&s *a#e +ess a#enues o a&&a' and you *a#e ewer ser#i'es &o %ain&ain &*rou)* (a&'* u(da&es-

. ab+ended &*rea&e(+oi&s one or %ore ne&wor ser#i'es, disab+e, or b+o' a''ess &o, &*ose ser#i'es un&i+ a

(a&'* is a((+ied-

+ways ee( your (a&'* +e#e+s u(&oda&e, es(e'ia++y on 'o%(u&ers &*a& *os& (ub+i' ser#i'es and are a''essib+e

&*rou)* &*e irewa++, su'* as HTTP, FTP, %ai+, and 8!" ser#i'es or ea%(+e, a++ Windowsbased 'o%(u&ers s*ou+d *a#e

&*e 'urren& "er#i'e Pa' ins&a++ed-- ddi&iona++y, (+ease a((+y any se'uri&y u(da&es &*a& are %en&ioned in &*is wri&eu(, in

&rus&ed "e'uri&y u++e&ins, or on #endor Web si&es-

;nor'e a (assword (o+i'y-


2/6

Updated: February 13, 2007 12:17:46 PM

Type: Trojan Horse

Systems Affected: Windows 2000, Windows 95, Windows 9, Windows Me, Windows !T, Windows "er#er 2003,

Windows $P

T*e o++owin) ins&ru'&ions (er&ain &o a++ 'urren& and re'en& "y%an&e' an&i#irus (rodu'&s, in'+udin) &*e "y%an&e' n&iirus

and !or&on n&iirus (rodu'& +ines-

1- 8isab+e "ys&e% es&ore Windows Me?$P-

2- @(da&e &*e #irus deini&ions-

3- un a u++ sys&e% s'an and de+e&e a++ &*e i+es de&e'&ed-

4- 8e+e&e any #a+ues added &o &*e re)is&ry-

5- ;di& &*e Win-ini i+e-

6- ;di& &*e "ys&e%-ini i+e-

7-


3/6

"y%an&e' "e'uri&y es(onse u++y &es&s a++ &*e #irus deini&ions or =ua+i&y assuran'e beore &*ey are (os&ed &o our

ser#ers- T*ere are &wo ways &o ob&ain &*e %os& re'en& #irus deini&ions:

unnin) Di#e@(da&e, w*i'* is &*e easies& way &o ob&ain #irus deini&ions: T*ese #irus deini&ions are (os&ed &o

&*e Di#e@(da&e ser#ers on'e ea'* wee usua++y on Wednesdays, un+ess &*ere is a %ajor #irus ou&brea- To

de&er%ine w*e&*er deini&ions or &*is &*rea& are a#ai+ab+e by Di#e@(da&e, reer &o irus 8eini&ions

Di#e@(da&e-

8own+oadin) &*e deini&ions usin) &*e .n&e++i)en& @(da&er: T*e .n&e++i)en& @(da&er #irus deini&ions are (os&ed

dai+y- Eou s*ou+d down+oad &*e deini&ions ro% &*e "y%an&e' "e'uri&y es(onse Web si&e and %anua++y

ins&a++ &*e%- To de&er%ine w*e&*er deini&ions or &*is &*rea& are a#ai+ab+e by &*e .n&e++i)en& @(da&er, reer &o

irus 8eini&ions .n&e++i)en& @(da&er-

T*e +a&es& .n&e++i)en& @(da&er #irus deini&ions 'an be ob&ained *ere: .n&e++i)en& @(da&er #irus deini&ions- For

de&ai+ed ins&ru'&ions read &*e do'u%en&: How &o u(da&e #irus deini&ion i+es usin) &*e .n&e++i)en& @(da&er-

'. To scan for and delete t&e infected files

a- "&ar& your "y%an&e' an&i#irus (ro)ra% and %ae sure &*a& i& is 'oni)ured &o s'an a++ &*e i+es-

For #orton Antiir%s cons%mer prod%cts:ead &*e do'u%en&: How &o 'oni)ure !or&on n&iirus

&o s'an a++ i+es-

For Symantec Antiir%s )nterprise prod%cts:ead &*e do'u%en&: How &o #eriy &*a& a "y%an&e'


4/6

Messa,e body: Windows cannot find [FILE NAME]. Make sure you typed te na!e

correct"y# and ten try a$ain. To searc for a fi"e# c"ick te %tart

&utton# and ten c"ick %earc.

-. To delete t&e val%e from t&e re,istry

+mportant:"y%an&e' s&ron)+y re'o%%ends &*a& you ba' u( &*e re)is&ry beore %ain) any '*an)es &o i&- .n'orre'&'*an)es &o &*e re)is&ry 'an resu+& in (er%anen& da&a +oss or 'orru(&ed i+es- Modiy &*e s(e'iied subeys on+y- For

ins&ru'&ions reer &o &*e do'u%en&:How &o %ae a ba'u( o &*e Windows re)is&ry-

a-


5/6

. To edit t&e Win.ini file

WARNING:T*e o++owin) s&e(s ins&ru'& you &o re%o#e &*e &e& ro% &*erun2 +ine o &*e Win-ini i+e- . you are usin)

o+der (ro)ra%s, &*ey %ay +oad a& s&ar&u( ro% one o &*ese +ines- . you are sure &*a& &*e &e& 'on&ained in &*ese +ines is

or &*e (ro)ra%s &*a& you nor%a++y use, &*en we su))es& &*a& you do no& re%o#e i&-

. you are runnin) Windows 95?9?Me, o++ow &*ese s&e(s:

a-


6/6

se"" 2 E1p"orer.e1e [T,/3AN FILE NAME]

#ote:TGI! F.D; !M;J reers &o &*e i+e na%e de&e'&ed durin) &*e s'an-

d. . &*is +ine eis&s, de+e&e e#ery&*in) &o &*e ri)*& o E1p"orer.e1e.

W*en you are done, i& s*ou+d +oo +ie:

se"" 2 E1p"orer.e1e

e-

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