TROJ_PAKES.SLS

This Trojan arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

However, as of this writing, the said sites are inaccessible.

Arrival Details

This Trojan arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

Installation

This Trojan drops the following copies of itself into the affected system:

• %User Temp%\tmp{random characters}.tmp

(Note: %User Temp% is the current user's Temp folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000, XP, and Server 2003.)

It stays memory-resident by injecting codes into the following processes:

• svchost.exe

Other Details

This Trojan connects to the following possibly malicious URL:

• http://{BLOCKED}.186.237/index.php

However, as of this writing, the said sites are inaccessible.

NOTES:

This Trojan attempts to reconfigure different routers. It does this by sending requests to the local Web page for various setup wizards bundled with the said routers. Some of the requests are the following:

• /index.asp
• /dlink/hwiz.html
• /home.asp
• /wizard.htm

It then attempts to identify the password needed to administer the router by using any of the following list of user name-password combinations (i.e. {user name}:{password} :

• !root:
• 11111:x-admin
• 1234:1234
• 1500:and 2000 Series
• 1502:1502
• :1064
• :1234
• :12345
• :1234admin
• :3477
• :3ascotel
• :4getme2
• :9999
• :BRIDGE
• :Cisco
• :Intel
• :PASSWORD
• :SMDR
• :SUPER
• :Symbol
• :TANDBERG
• :TENmanUFactOryPOWER
• :Telecom
• :_Cisco
• :access
• :admin
• :administrator
• :ascend
• :atc123
• :cisco
• :connect
• :default
• :enter
• :epicrouter
• :help
• :hs7mwxkk
• :letmein
• :medion
• :nokia
• :password
• :pento
• :public
• :secret
• :sitecom
• :smcadmin
• :speedxess
• :sysadm
• :system
• ADMINISTRATOR:ADMINISTRATOR
• ADMN:admn
• ADSL:expert03
• ADVMAIL:HP
• ADVMAIL:HPOFFICE DATA
• Admin:
• Admin:123456
• Admin:admin
• Administrator:
• Administrator:3ware
• Administrator:admin
• Administrator:changeme
• Administrator:ganteng
• Administrator:password
• Administrator:pilou
• Administrator:smcadmin
• Any:12345
• CISCO15:otbu+1
• CSG:SESAME
• Cisco:Cisco
• FIELD:HPONLY
• FIELD:HPP187 SYS
• FIELD:HPWORD PUB
• FIELD:LOTUS
• FIELD:MANAGER
• FIELD:MGR
• FIELD:SERVICE
• FIELD:SUPPORT
• Factory:56789
• GEN1:gen1
• GEN2:gen2
• Gearguy:Geardog
• HELLO:FIELD.SUPPORT
• HELLO:MANAGER.SYS
• HELLO:MGR.SYS
• HELLO:OP.OPERATOR
• HTTP:HTTP
• IntraStack:Asante
• IntraSwitch:Asante
• MAIL:HPOFFICE
• MAIL:MAIL
• MAIL:MPE
• MAIL:REMOTE
• MAIL:TELESUP
• MANAGER:COGNOS
• MANAGER:HPOFFICE
• MANAGER:ITF3000
• MANAGER:SECURITY
• MANAGER:SYS
• MANAGER:TCH
• MANAGER:TELESUP
• MDaemon:MServer
• MGR:CAROLIAN
• MGR:CCC
• MGR:CNAS
• MGR:COGNOS
• MGR:CONV
• MGR:HPDESK
• MGR:HPOFFICE
• MGR:HPONLY
• MGR:HPP187
• MGR:HPP189
• MGR:HPP196
• MGR:INTX3
• MGR:ITF3000
• MGR:NETBASE
• MGR:REGO
• MGR:RJE
• MGR:ROBELLE
• MGR:SECURITY
• MGR:SYS
• MGR:TELESUP
• MGR:VESOFT
• MGR:WORD
• MGR:XLSERVER
• MICRO:RSX
• Manager:
• Manager:friend
• NAU:NAU
• NICONEX:NICONEX
• OPERATOR:COGNOS
• OPERATOR:DISC
• OPERATOR:SUPPORT
• OPERATOR:SYS
• OPERATOR:SYSTEM
• PCUSER:SYS
• PRODDTA:PRODDTA
• Polycom:456
• Polycom:SpIp
• RMUser1:password
• RSBCMON:SYS
• Root:
• SPOOLMAN:HPOFFICE
• SSA:SSA
• SYSADM:sysadm
• SYSDBA:masterkey
• Service:5678
• TMAR#HWMT8007079:
• USERID:PASSW0RD
• User:
• User:Password
• WP:HPOFFICE
• aaa:often blank
• admin2:changeme
• admin:
• admin:0
• admin:1111
• admin:123
• admin:1234
• admin:12345
• admin:123456
• admin:1234admin
• admin:2222
• admin:22222
• admin:Ascend
• admin:NetCache
• admin:NetSurvibox
• admin:OCS
• admin:OkiLAN
• admin:P@55w0rd!
• admin:Password
• admin:Protector
• admin:Sharp
• admin:access
• admin:admin
• admin:admin123
• admin:administrator
• admin:adslolitec
• admin:adslroot
• admin:articon
• admin:asante
• admin:asd
• admin:atlantis
• admin:barricade
• admin:bintec
• admin:changeme
• admin:comcomcom
• admin:default
• admin:draadloos
• admin:epicrouter
• admin:extendnet
• admin:hagpolm1
• admin:hello
• admin:hp.com
• admin:imss7.0
• admin:ironport
• admin:isee
• admin:leviton
• admin:linga
• admin:michelangelo
• admin:microbusiness
• admin:motorola
• admin:mu
• admin:my_DEMARC
• admin:netadmin
• admin:noway
• admin:operator
• admin:password
• admin:passwort
• admin:pfsense
• admin:rmnetlm
• admin:secure
• admin:setup
• admin:smallbusiness
• admin:smcadmin
• admin:switch
• admin:symbol
• admin:synnet
• admin:sysAdmin
• admin:w2402
• admin:x-admin
• administrator:
• adminstat:OCS
• adminstrator:changeme
• adminttd:adminttd
• adminuser:OCS
• adminview:OCS
• apc:apc
• cablecom:router
• cac_admin:cacadmin
• ccrusr:ccrusr
• cellit:cellit
• cisco:
• citel:password
• comcast:
• comcast:1234
• craft:
• cusadmin:highspeed
• customer:none
• dadmin:dadmin01
• davox:davox
• deskalt:password
• deskman:changeme
• desknorm:password
• deskres:password
• device:device
• diag:danger
• disttech:4tas
• e250:e250changeme
• e500:e500changeme
• guest:
• guest:guest
• helpdesk:OCS
• hsa:hsadb
• images:images
• install:secret
• installer:installer
• intel:intel
• intermec:intermec
• isp:isp
• jagadmin:
• l2:l2
• l3:l3
• login:access
• login:admin
• m1122:m1122
• maint:maint
• maint:ntacdmax
• manage:!manage
• manager:admin
• manager:change_on_install
• manager:friend
• manager:manager
• manuf:xxyyzz
• mediator:mediator
• mlusr:mlusr
• monitor:monitor
• mso:w0rkplac3rul3s
• naadmin:naadmin
• netadmin:nimdaten
• netman:
• netrangr:attack
• netscreen:netscreen
• none:0
• none:admin
• operator:
• operator:$chwarzepumpe
• operator:1234
• operator:operator
• patrol:patrol
• piranha:piranha
• piranha:q
• public:
• public:public
• radware:radware
• readonly:lucenttech2
• readwrite:lucenttech1
• replicator:replicator
• ro:ro
• root:
• root:0P3N
• root:1234
• root:12345
• root:3ep5w2u
• root:Cisco
• root:Mau'dib
• root:admin
• root:admin_1
• root:ascend
• root:attack
• root:blender
• root:calvin
• root:changeme
• root:davox
• root:default
• root:fivranne
• root:iDirect
• root:pass
• root:password
• root:root
• root:tslinux
• rw:rw
• rwa:rwa
• scmadmin:scmchangeme
• scout:scout
• security:security
• service:smile
• setup:changeme
• setup:setup
• smc:smcadmin
• storwatch:specialist
• stratacom:stratauser
• super.super:
• super.super:master
• super:5777364
• super:super
• superadmin:secret
• superman:21241036
• superman:talent
• superuser:admin
• supervisor:
• supervisor:PlsChgMe
• supervisor:supervisor
• support:h179350
• support:support
• sys:uplink
• sysadmin:PASS
• sysadmin:password
• system:password
• system:sys
• teacher:password
• telecom:telecom
• tellabs:tellabs#1
• temp1:password
• tiara:tiaranet
• tiger:tiger123
• topicalt:password
• topicnorm:password
• topicres:password
• user:
• user:password
• user:tivonpw
• user:user
• vcr:NetVCR
• vt100:public
• webadmin:1234
• webadmin:webadmin
• websecadm:changeme
• wlse:wlsedb
• wradmin:trancell
• xd:xd
• zxc:cascade

Once it successfully performs this routine, it changes the system's domain name system (DNS) records. This enables remote malicious users to have access to system processes as all transactions pass through their networks first.

It modifies DNS settings using HTTP POST or GET depending on the router. Some of the requests are the following:

• {IP address of router}/Gozila.cgi%parameter%
• {IP address of router}/apply.cgi%parameter%
• {IP address of router}/cgi-bin/prim%parameter%
• {IP address of router}/cgi-bin/rebo%parameter%
• {IP address of router}/cgi/post.cgi%parameter%
• {IP address of router}/dnscfg.cgi%parameter%
• {IP address of router}/ether.cgi%parameter%
• {IP address of router}/primary.cgi%parameter%
• {IP address of router}/setup.cgi%parameter%

DNS will be changed into the following, depending on the server where the URLs are redirected :

• Primary Name Server: {BLOCKED}.{BLOCKED}.114.13
• Alternate Name Server: {BLOCKED}.{BLOCKED}.112.174