分(fēn)析者: Thea Patrice Tajonera   

 :

Trojan.OSX.SilverSparrow (IKARUS)

 平台:

OSX

 总體(tǐ)风险等级:
 潜在破坏:
 潜在分(fēn)布:
 感染次数:
 信息暴露:

  • 恶意软件类型:
    Trojan

  • 有(yǒu)破坏性?:
    没有(yǒu)

  • 加密?:
     

  • In the Wild:
    是的

  概要

感染途徑: ???????, ?????????

N???????????????????????

  技(jì )术详细信息

文(wén)件大小(xiǎo): 54403 bytes
报告日期: Other
内存驻留: 没有(yǒu)
初始樣本接收日期: 2021年2月22日
Payload: ??? URL/Ip, ????, ????
N

???????

???????????????????????

??

????????:

  • /Users/scbox/Library/Application Support/agent_updater

????

???????:

  • ~/Library/LaunchAgents/init_agent.plist -> persistence for agent.sh
  • ~/Library/Application Support/agent_updater/agent.sh -> detected as Trojan.SH.SLISP

????

???????:

  • Query String:
    • sqlite3 /Users/scbox/Library/Preferences/com.apple.LaunchServices.QuarantineEventsV2 select LSQuarantineDataURLString from LSQuarantineEvent where LSQuarantineDataURLString like \"%stu=3c55805%\" order by LSQuarantineTimeStamp desc

????

??? HTTP POST ??????????? URL:

  • http://api.{BLOCKED}traits.com/pkl

??????

它连接到以下可(kě)疑的网址:

  • mobiletraits.s3.{BLOCKED}aws.com
  • s3-1-w.{BLOKCED}aws.com
  • api.{BLOCKED}traits.com

?????????:

  • This malware is a pkg file (updater.pkg) that contains malicious pre-install scripts inside the Distribution.xml file -> detected as Trojan.XML.SLISP.A
  • The Distribution.xml file contains javascript codes to run system commands and does the routine:
    • Creates file init_agent.plist
    • Creates file agent.sh
    • Downloads version.plist
    • Run init_agent.plist
    • agent.sh downloads and runs its payload
    • Query Download Data
  • Init_agent.plist calls agent.sh every hour
  • The url that agent.sh downloads is dependent from another downloaded file from https://mobiletraits.s3.{BLOCKED}aws.com/version.json and is stored in /tmp/version.json
  • The .pkg file will also execute the bystander binaries file

  解决方案

最小(xiǎo)扫描引擎: 10.000
First VSAPI Pattern File: 16.557.00
VSAPI 第一样式发布日期: 2021年2月23日
VSAPI OPR样式版本: 16.557.00
VSAPI OPR样式发布日期: 2021年2月23日

?????????????,???????Trojan.MacOS.SLISP.A?? ????????????????????????,????????????????????????????????????????